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25025426652 = 2232085452221
BaseRepresentation
bin10111010011101000…
…011011010011011100
32101121001202101121210
4113103220123103130
5402223002123102
615255125424420
71544103421362
oct272350332334
971531671553
1025025426652
11a682223496
124a24b6b110
13248a899985
1412d58c5632
159b704636c
hex5d3a1b4dc

25025426652 has 12 divisors (see below), whose sum is σ = 58392662216. Its totient is φ = 8341808880.

The previous prime is 25025426651. The next prime is 25025426653. The reversal of 25025426652 is 25662452052.

It is an interprime number because it is at equal distance from previous prime (25025426651) and next prime (25025426653).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×250254266522 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25025426652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25025426651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042726099 + ... + 1042726122.

Almost surely, 225025426652 is an apocalyptic number.

It is an amenable number.

25025426652 is an abundant number, since it is smaller than the sum of its proper divisors (33367235564).

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

25025426652 is a wasteful number, since it uses less digits than its factorization.

25025426652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085452228 (or 2085452226 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

The spelling of 25025426652 in words is "twenty-five billion, twenty-five million, four hundred twenty-six thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 2085452221 4170904442 6256356663 8341808884 12512713326 25025426652