25212825536 has 28 divisors (see below), whose sum is σ = 50527077000. Its totient is φ = 12481593600.

The previous prime is 25212825503. The next prime is 25212825553. The reversal of 25212825536 is 63552821252.

It is a junction number, because it is equal to n+sod(n) for n = 25212825493 and 25212825502.

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, 1943786 + ... + 1956713.

Almost surely, 2^25212825536 is an apocalyptic number.

It is an amenable number.

25212825536 is an abundant number, since it is smaller than the sum of its proper divisors (25314251464).

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

25212825536 is a wasteful number, since it uses less digits than its factorization.

25212825536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900612 (or 3900602 counting only the distinct ones).

The product of its digits is 288000, while the sum is 41.

The spelling of 25212825536 in words is "twenty-five billion, two hundred twelve million, eight hundred twenty-five thousand, five hundred thirty-six".