25235228736 has 63 divisors (see below), whose sum is σ = 72343156431. Its totient is φ = 8410472064.

The previous prime is 25235228701. The next prime is 25235228741. The reversal of 25235228736 is 63782253252.

The square root of 25235228736 is 158856.

It is a perfect power (a square), and thus also a powerful number.

25235228736 is a `hidden beast` number, since 2 + 52 + 3 + 522 + 8 + 73 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25235228691 and 25235228700.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3809235 + ... + 3815853.

Almost surely, 2^25235228736 is an apocalyptic number.

25235228736 is the 158856-th square number.

It is an amenable number.

25235228736 is an abundant number, since it is smaller than the sum of its proper divisors (47107927695).

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

25235228736 is an frugal number, since it uses more digits than its factorization.

25235228736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13256 (or 6624 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 45.

The spelling of 25235228736 in words is "twenty-five billion, two hundred thirty-five million, two hundred twenty-eight thousand, seven hundred thirty-six".