51713572 has 6 divisors (see below), whose sum is σ = 90498758. Its totient is φ = 25856784.

The previous prime is 51713569. The next prime is 51713581. The reversal of 51713572 is 27531715.

It can be written as a sum of positive squares in only one way, i.e., 45077796 + 6635776 = 6714^2 + 2576^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6464193 + ... + 6464200.

Almost surely, 2^51713572 is an apocalyptic number.

It is an amenable number.

51713572 is a deficient number, since it is larger than the sum of its proper divisors (38785186).

51713572 is a wasteful number, since it uses less digits than its factorization.

51713572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12928397 (or 12928395 counting only the distinct ones).

The product of its digits is 7350, while the sum is 31.

The square root of 51713572 is about 7191.2149182179. The cubic root of 51713572 is about 372.5645357608.

The spelling of 51713572 in words is "fifty-one million, seven hundred thirteen thousand, five hundred seventy-two".