51722575 has 6 divisors (see below), whose sum is σ = 64136024. Its totient is φ = 41378040.

The previous prime is 51722563. The next prime is 51722581. The reversal of 51722575 is 57522715.

It is not a de Polignac number, because 51722575 - 2⁵ = 51722543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51722575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1034427 + ... + 1034476.

Almost surely, 2^51722575 is an apocalyptic number.

51722575 is a deficient number, since it is larger than the sum of its proper divisors (12413449).

51722575 is a wasteful number, since it uses less digits than its factorization.

51722575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068913 (or 2068908 counting only the distinct ones).

The product of its digits is 24500, while the sum is 34.

The square root of 51722575 is about 7191.8408630892. The cubic root of 51722575 is about 372.5861548688.

The spelling of 51722575 in words is "fifty-one million, seven hundred twenty-two thousand, five hundred seventy-five".