51957228 has 48 divisors (see below), whose sum is σ = 123653376. Its totient is φ = 16977600.

The previous prime is 51957203. The next prime is 51957233. The reversal of 51957228 is 82275915.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197425 + ... + 197687.

It is an arithmetic number, because the mean of its divisors is an integer number (2576112).

Almost surely, 2^51957228 is an apocalyptic number.

It is an amenable number.

51957228 is an abundant number, since it is smaller than the sum of its proper divisors (71696148).

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

51957228 is a wasteful number, since it uses less digits than its factorization.

51957228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its digits is 50400, while the sum is 39.

The square root of 51957228 is about 7208.1362362264. The cubic root of 51957228 is about 373.1487498105.

The spelling of 51957228 in words is "fifty-one million, nine hundred fifty-seven thousand, two hundred twenty-eight".