25209112404 has 48 divisors (see below), whose sum is σ = 68787665408. Its totient is φ = 7035100128.

The previous prime is 25209112393. The next prime is 25209112421. The reversal of 25209112404 is 40421190252.

It is a congruent 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, 3486022 + ... + 3493245.

Almost surely, 2^25209112404 is an apocalyptic number.

It is an amenable number.

25209112404 is an abundant number, since it is smaller than the sum of its proper divisors (43578553004).

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

25209112404 is a wasteful number, since it uses less digits than its factorization.

25209112404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6979324 (or 6979322 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 25209112404 in words is "twenty-five billion, two hundred nine million, one hundred twelve thousand, four hundred four".