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25715376057 = 372174934531
BaseRepresentation
bin10111111100110000…
…010111111110111001
32110101011000110021110
4113330300113332321
5410131114013212
615451413430533
71600152042600
oct277460277671
973334013243
1025715376057
11a9a6728708
124b9803b449
13256a7ca467
14135d3a4a37
15a078d0a3c
hex5fcc17fb9

25715376057 has 12 divisors (see below), whose sum is σ = 39885073296. Its totient is φ = 14694500520.

The previous prime is 25715376023. The next prime is 25715376097. The reversal of 25715376057 is 75067351752.

It is not a de Polignac number, because 25715376057 - 226 = 25648267193 is a prime.

It is a super-2 number, since 2×257153760572 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25715375997 and 25715376015.

It is not an unprimeable number, because it can be changed into a prime (25715376097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87467119 + ... + 87467412.

It is an arithmetic number, because the mean of its divisors is an integer number (3323756108).

Almost surely, 225715376057 is an apocalyptic number.

It is an amenable number.

25715376057 is a deficient number, since it is larger than the sum of its proper divisors (14169697239).

25715376057 is a wasteful number, since it uses less digits than its factorization.

25715376057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174934548 (or 174934541 counting only the distinct ones).

The product of its (nonzero) digits is 1543500, while the sum is 48.

The spelling of 25715376057 in words is "twenty-five billion, seven hundred fifteen million, three hundred seventy-six thousand, fifty-seven".

Divisors: 1 3 7 21 49 147 174934531 524803593 1224541717 3673625151 8571792019 25715376057