25608058957 has 6 divisors (see below), whose sum is σ = 27578531022. Its totient is φ = 23637675672.

The previous prime is 25608058939. The next prime is 25608058997. The reversal of 25608058957 is 75985080652.

It can be written as a sum of positive squares in only one way, i.e., 17728656201 + 7879402756 = 133149^2 + 88766^2 .

It is not a de Polignac number, because 25608058957 - 2¹⁹ = 25607534669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25608058898 and 25608058907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25608058997) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 554788 + ... + 599170.

It is an arithmetic number, because the mean of its divisors is an integer number (4596421837).

Almost surely, 2^25608058957 is an apocalyptic number.

It is an amenable number.

25608058957 is a deficient number, since it is larger than the sum of its proper divisors (1970472065).

25608058957 is an frugal number, since it uses more digits than its factorization.

25608058957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88779 (or 44396 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 25608058957 in words is "twenty-five billion, six hundred eight million, fifty-eight thousand, nine hundred fifty-seven".