51537125 has 16 divisors (see below), whose sum is σ = 65235456. Its totient is φ = 40642000.

The previous prime is 51537113. The next prime is 51537133. The reversal of 51537125 is 52173515.

It is a happy number.

It is not a de Polignac number, because 51537125 - 2⁶ = 51537061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5972 + ... + 11778.

It is an arithmetic number, because the mean of its divisors is an integer number (4077216).

Almost surely, 2^51537125 is an apocalyptic number.

It is an amenable number.

51537125 is a deficient number, since it is larger than the sum of its proper divisors (13698331).

51537125 is an equidigital number, since it uses as much as digits as its factorization.

51537125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5893 (or 5883 counting only the distinct ones).

The product of its digits is 5250, while the sum is 29.

The square root of 51537125 is about 7178.9362025303. The cubic root of 51537125 is about 372.1403221539.

The spelling of 51537125 in words is "fifty-one million, five hundred thirty-seven thousand, one hundred twenty-five".