51727928 has 24 divisors (see below), whose sum is σ = 112825800. Its totient is φ = 22168944.

The previous prime is 51727927. The next prime is 51727969. The reversal of 51727928 is 82972715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51727927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65588 + ... + 66371.

It is an arithmetic number, because the mean of its divisors is an integer number (4701075).

Almost surely, 2^51727928 is an apocalyptic number.

It is an amenable number.

51727928 is an abundant number, since it is smaller than the sum of its proper divisors (61097872).

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

51727928 is a wasteful number, since it uses less digits than its factorization.

51727928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131979 (or 131968 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 51727928 is about 7192.2130113060. The cubic root of 51727928 is about 372.5990079598.

The spelling of 51727928 in words is "fifty-one million, seven hundred twenty-seven thousand, nine hundred twenty-eight".