51232362564 has 24 divisors (see below), whose sum is σ = 120210017760. Its totient is φ = 16982048704.

The previous prime is 51232362563. The next prime is 51232362581. The reversal of 51232362564 is 46526323215.

It is not an unprimeable number, because it can be changed into a prime (51232362563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11923449 + ... + 11927744.

It is an arithmetic number, because the mean of its divisors is an integer number (5008750740).

Almost surely, 2^51232362564 is an apocalyptic number.

It is an amenable number.

51232362564 is an abundant number, since it is smaller than the sum of its proper divisors (68977655196).

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

51232362564 is a wasteful number, since it uses less digits than its factorization.

51232362564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23851379 (or 23851377 counting only the distinct ones).

The product of its digits is 259200, while the sum is 39.

Adding to 51232362564 its reverse (46526323215), we get a palindrome (97758685779).

The spelling of 51232362564 in words is "fifty-one billion, two hundred thirty-two million, three hundred sixty-two thousand, five hundred sixty-four".