51625532 has 24 divisors (see below), whose sum is σ = 109325664. Its totient is φ = 20823552.

The previous prime is 51625529. The next prime is 51625543. The reversal of 51625532 is 23552615.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51625495 and 51625504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53753 + ... + 54704.

It is an arithmetic number, because the mean of its divisors is an integer number (4555236).

Almost surely, 2^51625532 is an apocalyptic number.

It is an amenable number.

51625532 is an abundant number, since it is smaller than the sum of its proper divisors (57700132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51625532 is a wasteful number, since it uses less digits than its factorization.

51625532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108485 (or 108483 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 51625532 is about 7185.0909527994. The cubic root of 51625532 is about 372.3529909515.

The spelling of 51625532 in words is "fifty-one million, six hundred twenty-five thousand, five hundred thirty-two".