25212975416 has 16 divisors (see below), whose sum is σ = 48552014040. Its totient is φ = 12265771680.

The previous prime is 25212975367. The next prime is 25212975421. The reversal of 25212975416 is 61457921252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42589190 + ... + 42589781.

Almost surely, 2^25212975416 is an apocalyptic number.

It is an amenable number.

25212975416 is a deficient number, since it is larger than the sum of its proper divisors (23339038624).

25212975416 is a wasteful number, since it uses less digits than its factorization.

25212975416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85179014 (or 85179010 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The spelling of 25212975416 in words is "twenty-five billion, two hundred twelve million, nine hundred seventy-five thousand, four hundred sixteen".