51775943848572 has 24 divisors (see below), whose sum is σ = 120863779666000. Its totient is φ = 17251041661056.

The previous prime is 51775943848561. The next prime is 51775943848633. The reversal of 51775943848572 is 27584834957715.

It is a super-2 number, since 2×51775943848572² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51775943848494 and 51775943848503.

It is a congruent number.

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, 950757697 + ... + 950812152.

Almost surely, 2^{51775943848572} is an apocalyptic number.

It is an amenable number.

51775943848572 is an abundant number, since it is smaller than the sum of its proper divisors (69087835817428).

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

51775943848572 is a wasteful number, since it uses less digits than its factorization.

51775943848572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901572125 (or 1901572123 counting only the distinct ones).

The product of its digits is 2370816000, while the sum is 75.

The spelling of 51775943848572 in words is "fifty-one trillion, seven hundred seventy-five billion, nine hundred forty-three million, eight hundred forty-eight thousand, five hundred seventy-two".