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25755505001 = 731873188369
BaseRepresentation
bin10111111111001001…
…011101000101101001
32110110221112012211122
4113333021131011221
5410221402130001
615455405505025
71601150115602
oct277711350551
973427465748
1025755505001
11aa17347126
124ba9572175
132575c0a8b5
14136484cda9
15a0b1aab1b
hex5ff25d169

25755505001 has 8 divisors (see below), whose sum is σ = 26122398120. Its totient is φ = 25388992512.

The previous prime is 25755504991. The next prime is 25755505007. The reversal of 25755505001 is 10050555752.

It can be written as a sum of positive squares in 4 ways, for example, as 2311301776 + 23444203225 = 48076^2 + 153115^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25755505001 - 214 = 25755488617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25755505007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42545 + ... + 230913.

It is an arithmetic number, because the mean of its divisors is an integer number (3265299765).

Almost surely, 225755505001 is an apocalyptic number.

It is an amenable number.

25755505001 is a deficient number, since it is larger than the sum of its proper divisors (366893119).

25755505001 is a wasteful number, since it uses less digits than its factorization.

25755505001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190315.

The product of its (nonzero) digits is 43750, while the sum is 35.

The spelling of 25755505001 in words is "twenty-five billion, seven hundred fifty-five million, five hundred five thousand, one".

Divisors: 1 73 1873 136729 188369 13750937 352815137 25755505001