51145312320524 has 24 divisors (see below), whose sum is σ = 91704193371168. Its totient is φ = 24944343672960.

The previous prime is 51145312320493. The next prime is 51145312320569. The reversal of 51145312320524 is 42502321354115.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27787904 + ... + 29571239.

It is an arithmetic number, because the mean of its divisors is an integer number (3821008057132).

Almost surely, 2^{51145312320524} is an apocalyptic number.

It is an amenable number.

51145312320524 is a deficient number, since it is larger than the sum of its proper divisors (40558881050644).

51145312320524 is a wasteful number, since it uses less digits than its factorization.

51145312320524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57364625 (or 57364623 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 51145312320524 its reverse (42502321354115), we get a palindrome (93647633674639).

The spelling of 51145312320524 in words is "fifty-one trillion, one hundred forty-five billion, three hundred twelve million, three hundred twenty thousand, five hundred twenty-four".