51042862575 has 36 divisors (see below), whose sum is σ = 91647132720. Its totient is φ = 27156251520.

The previous prime is 51042862571. The next prime is 51042862583. The reversal of 51042862575 is 57526824015.

51042862575 is a `hidden beast` number, since 5 + 10 + 4 + 2 + 8 + 62 + 575 = 666.

It is not a de Polignac number, because 51042862575 - 2² = 51042862571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 51042862575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51042862571) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 185307 + ... + 369356.

Almost surely, 2^51042862575 is an apocalyptic number.

51042862575 is a deficient number, since it is larger than the sum of its proper divisors (40604270145).

51042862575 is a wasteful number, since it uses less digits than its factorization.

51042862575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555088 (or 555080 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The spelling of 51042862575 in words is "fifty-one billion, forty-two million, eight hundred sixty-two thousand, five hundred seventy-five".