25231500404 has 12 divisors (see below), whose sum is σ = 48169228128. Its totient is φ = 11468863800.

The previous prime is 25231500389. The next prime is 25231500407. The reversal of 25231500404 is 40400513252.

It is a happy number.

It is a super-2 number, since 2×25231500404² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25231500407) 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, 286721552 + ... + 286721639.

It is an arithmetic number, because the mean of its divisors is an integer number (4014102344).

Almost surely, 2^25231500404 is an apocalyptic number.

It is an amenable number.

25231500404 is a deficient number, since it is larger than the sum of its proper divisors (22937727724).

25231500404 is a wasteful number, since it uses less digits than its factorization.

25231500404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573443206 (or 573443204 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 25231500404 in words is "twenty-five billion, two hundred thirty-one million, five hundred thousand, four hundred four".