51936924 has 36 divisors (see below), whose sum is σ = 130734744. Its totient is φ = 15952896.

The previous prime is 51936901. The next prime is 51936931. The reversal of 51936924 is 42963915.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89724 + ... + 90300.

Almost surely, 2^51936924 is an apocalyptic number.

It is an amenable number.

51936924 is an abundant number, since it is smaller than the sum of its proper divisors (78797820).

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

51936924 is a wasteful number, since it uses less digits than its factorization.

51936924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174 (or 595 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 51936924 is about 7206.7276901518. The cubic root of 51936924 is about 373.1001367517.

Multiplying 51936924 by its sum of digits (39), we get a square (2025540036 = 45006²).

51936924 divided by its sum of digits (39) gives a square (1331716 = 1154²).

The spelling of 51936924 in words is "fifty-one million, nine hundred thirty-six thousand, nine hundred twenty-four".