25641474155 has 16 divisors (see below), whose sum is σ = 34474240224. Its totient is φ = 18144334080.

The previous prime is 25641474107. The next prime is 25641474181. The reversal of 25641474155 is 55147414652.

It is not a de Polignac number, because 25641474155 - 2⁸ = 25641473899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6298082 + ... + 6302151.

It is an arithmetic number, because the mean of its divisors is an integer number (2154640014).

Almost surely, 2^25641474155 is an apocalyptic number.

25641474155 is a deficient number, since it is larger than the sum of its proper divisors (8832766069).

25641474155 is a wasteful number, since it uses less digits than its factorization.

25641474155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12600286.

The product of its digits is 672000, while the sum is 44.

The spelling of 25641474155 in words is "twenty-five billion, six hundred forty-one million, four hundred seventy-four thousand, one hundred fifty-five".