25354952634 has 32 divisors (see below), whose sum is σ = 58574010816. Its totient is φ = 7231358720.

The previous prime is 25354952627. The next prime is 25354952641. The reversal of 25354952634 is 43625945352.

It is an interprime number because it is at equal distance from previous prime (25354952627) and next prime (25354952641).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11297877 + ... + 11300120.

It is an arithmetic number, because the mean of its divisors is an integer number (1830437838).

Almost surely, 2^25354952634 is an apocalyptic number.

25354952634 is an abundant number, since it is smaller than the sum of its proper divisors (33219058182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25354952634 is a wasteful number, since it uses less digits than its factorization.

25354952634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22598030.

The product of its digits is 3888000, while the sum is 48.

The spelling of 25354952634 in words is "twenty-five billion, three hundred fifty-four million, nine hundred fifty-two thousand, six hundred thirty-four".