51531224233132 has 12 divisors (see below), whose sum is σ = 103062448466320. Its totient is φ = 22084810385616.

The previous prime is 51531224233109. The next prime is 51531224233147. The reversal of 51531224233132 is 23133242213515.

51531224233132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 51531224233091 and 51531224233100.

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, 920200432707 + ... + 920200432762.

Almost surely, 2^{51531224233132} is an apocalyptic number.

It is an amenable number.

51531224233132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51531224233132 is a wasteful number, since it uses less digits than its factorization.

51531224233132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840400865480 (or 1840400865478 counting only the distinct ones).

The product of its digits is 129600, while the sum is 37.

Adding to 51531224233132 its reverse (23133242213515), we get a palindrome (74664466446647).

The spelling of 51531224233132 in words is "fifty-one trillion, five hundred thirty-one billion, two hundred twenty-four million, two hundred thirty-three thousand, one hundred thirty-two".