51885025 has 12 divisors (see below), whose sum is σ = 65245824. Its totient is φ = 40922000.

The previous prime is 51885023. The next prime is 51885061. The reversal of 51885025 is 52058815.

It is a happy number.

It is not a de Polignac number, because 51885025 - 2¹ = 51885023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51885023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12841 + ... + 16390.

It is an arithmetic number, because the mean of its divisors is an integer number (5437152).

Almost surely, 2^51885025 is an apocalyptic number.

It is an amenable number.

51885025 is a deficient number, since it is larger than the sum of its proper divisors (13360799).

51885025 is a wasteful number, since it uses less digits than its factorization.

51885025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29312 (or 29307 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The square root of 51885025 is about 7203.1260574837. The cubic root of 51885025 is about 372.9758194331.

The spelling of 51885025 in words is "fifty-one million, eight hundred eighty-five thousand, twenty-five".