25756205157 has 12 divisors (see below), whose sum is σ = 37344868704. Its totient is φ = 17105513640.

The previous prime is 25756205119. The next prime is 25756205171. The reversal of 25756205157 is 75150265752.

25756205157 is a `hidden beast` number, since 2 + 5 + 7 + 5 + 620 + 5 + 15 + 7 = 666.

It is not a de Polignac number, because 25756205157 - 2¹² = 25756201061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25756205257) 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 11 ways as a sum of consecutive naturals, for example, 5438319 + ... + 5443052.

It is an arithmetic number, because the mean of its divisors is an integer number (3112072392).

Almost surely, 2^25756205157 is an apocalyptic number.

It is an amenable number.

25756205157 is a deficient number, since it is larger than the sum of its proper divisors (11588663547).

25756205157 is a wasteful number, since it uses less digits than its factorization.

25756205157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10881640 (or 10881637 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 45.

The spelling of 25756205157 in words is "twenty-five billion, seven hundred fifty-six million, two hundred five thousand, one hundred fifty-seven".