51252531412 has 12 divisors (see below), whose sum is σ = 89693593920. Its totient is φ = 25625790296.

The previous prime is 51252531359. The next prime is 51252531427. The reversal of 51252531412 is 21413525215.

It is a super-2 number, since 2×51252531412² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252933 + ... + 408019.

It is an arithmetic number, because the mean of its divisors is an integer number (7474466160).

Almost surely, 2^51252531412 is an apocalyptic number.

It is an amenable number.

51252531412 is a deficient number, since it is larger than the sum of its proper divisors (38441062508).

51252531412 is a wasteful number, since it uses less digits than its factorization.

51252531412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237710 (or 237708 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The spelling of 51252531412 in words is "fifty-one billion, two hundred fifty-two million, five hundred thirty-one thousand, four hundred twelve".