51232205502 has 24 divisors (see below), whose sum is σ = 111801700920. Its totient is φ = 16954542000.

The previous prime is 51232205491. The next prime is 51232205527. The reversal of 51232205502 is 20550223215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10235749 + ... + 10240752.

It is an arithmetic number, because the mean of its divisors is an integer number (4658404205).

Almost surely, 2^51232205502 is an apocalyptic number.

51232205502 is an abundant number, since it is smaller than the sum of its proper divisors (60569495418).

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

51232205502 is a wasteful number, since it uses less digits than its factorization.

51232205502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20476648 (or 20476645 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 51232205502 its reverse (20550223215), we get a palindrome (71782428717).

The spelling of 51232205502 in words is "fifty-one billion, two hundred thirty-two million, two hundred five thousand, five hundred two".