51203415504 has 40 divisors (see below), whose sum is σ = 132285318912. Its totient is φ = 17066536960.

The previous prime is 51203415467. The next prime is 51203415539. The reversal of 51203415504 is 40551430215.

It is a congruent number.

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, 793744 + ... + 855824.

Almost surely, 2^51203415504 is an apocalyptic number.

It is an amenable number.

51203415504 is an abundant number, since it is smaller than the sum of its proper divisors (81081903408).

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

51203415504 is a wasteful number, since it uses less digits than its factorization.

51203415504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79275 (or 79269 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 51203415504 its reverse (40551430215), we get a palindrome (91754845719).

The spelling of 51203415504 in words is "fifty-one billion, two hundred three million, four hundred fifteen thousand, five hundred four".