25996102957 has 4 divisors (see below), whose sum is σ = 28359385056. Its totient is φ = 23632820860.

The previous prime is 25996102933. The next prime is 25996102963. The reversal of 25996102957 is 75920169952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 25996102957 - 2⁷ = 25996102829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25996102898 and 25996102907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25996102907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181641033 + ... + 1181641054.

It is an arithmetic number, because the mean of its divisors is an integer number (7089846264).

Almost surely, 2^25996102957 is an apocalyptic number.

It is an amenable number.

25996102957 is a deficient number, since it is larger than the sum of its proper divisors (2363282099).

25996102957 is a wasteful number, since it uses less digits than its factorization.

25996102957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2363282098.

The product of its (nonzero) digits is 3061800, while the sum is 55.

The spelling of 25996102957 in words is "twenty-five billion, nine hundred ninety-six million, one hundred two thousand, nine hundred fifty-seven".