25252235912 has 36 divisors (see below), whose sum is σ = 49988002005. Its totient is φ = 11957540256.

The previous prime is 25252235903. The next prime is 25252235929. The reversal of 25252235912 is 21953225252.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 22450227556 + 2802008356 = 149834^2 + 52934^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112366.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Duffinian number.

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, 8538338 + ... + 8541294.

Almost surely, 2^25252235912 is an apocalyptic number.

It is an amenable number.

25252235912 is a deficient number, since it is larger than the sum of its proper divisors (24735766093).

25252235912 is an frugal number, since it uses more digits than its factorization.

25252235912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958 (or 2978 counting only the distinct ones).

The product of its digits is 108000, while the sum is 38.

The spelling of 25252235912 in words is "twenty-five billion, two hundred fifty-two million, two hundred thirty-five thousand, nine hundred twelve".