25204112634 has 32 divisors (see below), whose sum is σ = 50687311680. Its totient is φ = 8354970752.

The previous prime is 25204112623. The next prime is 25204112663. The reversal of 25204112634 is 43621140252.

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, 894814 + ... + 922550.

It is an arithmetic number, because the mean of its divisors is an integer number (1583978490).

Almost surely, 2^25204112634 is an apocalyptic number.

25204112634 is an abundant number, since it is smaller than the sum of its proper divisors (25483199046).

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

25204112634 is a wasteful number, since it uses less digits than its factorization.

25204112634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28574.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 25204112634 its reverse (43621140252), we get a palindrome (68825252886).

The spelling of 25204112634 in words is "twenty-five billion, two hundred four million, one hundred twelve thousand, six hundred thirty-four".