25424510957 has 2 divisors, whose sum is σ = 25424510958. Its totient is φ = 25424510956.

The previous prime is 25424510941. The next prime is 25424510999. The reversal of 25424510957 is 75901542452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22539317161 + 2885193796 = 150131^2 + 53714^2 .

It is a cyclic number.

It is not a de Polignac number, because 25424510957 - 2⁴ = 25424510941 is a prime.

It is a super-2 number, since 2×25424510957² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25424510057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12712255478 + 12712255479.

It is an arithmetic number, because the mean of its divisors is an integer number (12712255479).

Almost surely, 2^25424510957 is an apocalyptic number.

It is an amenable number.

25424510957 is a deficient number, since it is larger than the sum of its proper divisors (1).

25424510957 is an equidigital number, since it uses as much as digits as its factorization.

25424510957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 44.

The spelling of 25424510957 in words is "twenty-five billion, four hundred twenty-four million, five hundred ten thousand, nine hundred fifty-seven".