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25522634312 = 237280692
BaseRepresentation
bin10111110001010001…
…000111111001001000
32102212201100011022022
4113301101013321020
5404232243244222
615420330344012
71562321545400
oct276121077110
972781304268
1025522634312
11a907952a0a
124b4358b008
1325398b4aa6
141341951800
159e5a0c042
hex5f1447e48

25522634312 has 36 divisors (see below), whose sum is σ = 55674890505. Its totient is φ = 10936916256.

The previous prime is 25522634311. The next prime is 25522634323. The reversal of 25522634312 is 21343622552.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 13965094276 + 11557540036 = 118174^2 + 107506^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=112966.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25522634311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3159014 + ... + 3167082.

Almost surely, 225522634312 is an apocalyptic number.

It is an amenable number.

25522634312 is an abundant number, since it is smaller than the sum of its proper divisors (30152256193).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25522634312 is an frugal number, since it uses more digits than its factorization.

25522634312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16158 (or 8078 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The spelling of 25522634312 in words is "twenty-five billion, five hundred twenty-two million, six hundred thirty-four thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 8069 16138 32276 56483 64552 112966 225932 395381 451864 790762 1581524 3163048 65108761 130217522 260435044 455761327 520870088 911522654 1823045308 3190329289 3646090616 6380658578 12761317156 25522634312