51273572 has 24 divisors (see below), whose sum is σ = 102797184. Its totient is φ = 21920832.

The previous prime is 51273529. The next prime is 51273589. The reversal of 51273572 is 27537215.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10793 + ... + 14799.

It is an arithmetic number, because the mean of its divisors is an integer number (4283216).

Almost surely, 2^51273572 is an apocalyptic number.

It is an amenable number.

51273572 is an abundant number, since it is smaller than the sum of its proper divisors (51523612).

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

51273572 is a wasteful number, since it uses less digits than its factorization.

51273572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4473 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 51273572 is about 7160.5566822699. The cubic root of 51273572 is about 371.5048814470.

The spelling of 51273572 in words is "fifty-one million, two hundred seventy-three thousand, five hundred seventy-two".