51284924 has 12 divisors (see below), whose sum is σ = 91270200. Its totient is φ = 25207728.

The previous prime is 51284911. The next prime is 51284927. The reversal of 51284924 is 42948215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51284927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108419 + ... + 108890.

It is an arithmetic number, because the mean of its divisors is an integer number (7605850).

Almost surely, 2^51284924 is an apocalyptic number.

It is an amenable number.

51284924 is a deficient number, since it is larger than the sum of its proper divisors (39985276).

51284924 is a wasteful number, since it uses less digits than its factorization.

51284924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217372 (or 217370 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 51284924 is about 7161.3493142005. The cubic root of 51284924 is about 371.5322965593.

The spelling of 51284924 in words is "fifty-one million, two hundred eighty-four thousand, nine hundred twenty-four".