51432525 has 72 divisors (see below), whose sum is σ = 99234720. Its totient is φ = 25384320.

The previous prime is 51432509. The next prime is 51432547. The reversal of 51432525 is 52523415.

It is a happy number.

It is not a de Polignac number, because 51432525 - 2⁴ = 51432509 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 226462 + ... + 226688.

It is an arithmetic number, because the mean of its divisors is an integer number (1378260).

Almost surely, 2^51432525 is an apocalyptic number.

It is an amenable number.

51432525 is a deficient number, since it is larger than the sum of its proper divisors (47802195).

51432525 is a wasteful number, since it uses less digits than its factorization.

51432525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 307 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 51432525 is about 7171.6473003070. The cubic root of 51432525 is about 371.8883856962. Note that the first 3 decimals are identical.

The spelling of 51432525 in words is "fifty-one million, four hundred thirty-two thousand, five hundred twenty-five".