25314725434 has 16 divisors (see below), whose sum is σ = 38128245480. Its totient is φ = 12605347840.

The previous prime is 25314725419. The next prime is 25314725503. The reversal of 25314725434 is 43452741352.

It can be written as a sum of positive squares in 4 ways, for example, as 21932721409 + 3382004025 = 148097^2 + 58155^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628322 + ... + 1643794.

Almost surely, 2^25314725434 is an apocalyptic number.

25314725434 is a deficient number, since it is larger than the sum of its proper divisors (12813520046).

25314725434 is a wasteful number, since it uses less digits than its factorization.

25314725434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18785.

The product of its digits is 403200, while the sum is 40.

The spelling of 25314725434 in words is "twenty-five billion, three hundred fourteen million, seven hundred twenty-five thousand, four hundred thirty-four".