51972025 has 12 divisors (see below), whose sum is σ = 73652032. Its totient is φ = 35637840.

The previous prime is 51972017. The next prime is 51972073. The reversal of 51972025 is 52027915.

51972025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51972025 - 2³ = 51972017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148317 + ... + 148666.

Almost surely, 2^51972025 is an apocalyptic number.

It is an amenable number.

51972025 is a deficient number, since it is larger than the sum of its proper divisors (21680007).

51972025 is a wasteful number, since it uses less digits than its factorization.

51972025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297000 (or 296995 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 51972025 is about 7209.1625727265. The cubic root of 51972025 is about 373.1841697010.

The spelling of 51972025 in words is "fifty-one million, nine hundred seventy-two thousand, twenty-five".