51537288 has 48 divisors (see below), whose sum is σ = 141629040. Its totient is φ = 15616480.

The previous prime is 51537281. The next prime is 51537289. The reversal of 51537288 is 88273515.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (51537281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5970 + ... + 11777.

It is an arithmetic number, because the mean of its divisors is an integer number (2950605).

Almost surely, 2^51537288 is an apocalyptic number.

It is an amenable number.

51537288 is an abundant number, since it is smaller than the sum of its proper divisors (90091752).

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

51537288 is a wasteful number, since it uses less digits than its factorization.

51537288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778 (or 17763 counting only the distinct ones).

The product of its digits is 67200, while the sum is 39.

The square root of 51537288 is about 7178.9475551783. The cubic root of 51537288 is about 372.1407144848.

The spelling of 51537288 in words is "fifty-one million, five hundred thirty-seven thousand, two hundred eighty-eight".