51975522 has 24 divisors (see below), whose sum is σ = 114042240. Its totient is φ = 17105400.

The previous prime is 51975487. The next prime is 51975529. The reversal of 51975522 is 22557915.

It is not an unprimeable number, because it can be changed into a prime (51975529) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 16854 + ... + 19697.

It is an arithmetic number, because the mean of its divisors is an integer number (4751760).

Almost surely, 2^51975522 is an apocalyptic number.

51975522 is an abundant number, since it is smaller than the sum of its proper divisors (62066718).

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

51975522 is a wasteful number, since it uses less digits than its factorization.

51975522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36638 (or 36635 counting only the distinct ones).

The product of its digits is 31500, while the sum is 36.

The square root of 51975522 is about 7209.4051072193. The cubic root of 51975522 is about 373.1925395613.

The spelling of 51975522 in words is "fifty-one million, nine hundred seventy-five thousand, five hundred twenty-two".