51519012484 has 9 divisors (see below), whose sum is σ = 90159066277. Its totient is φ = 25759279264.

The previous prime is 51519012473. The next prime is 51519012509. The reversal of 51519012484 is 48421091515.

The square root of 51519012484 is 226978.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2907582084 + 48611430400 = 53922^2 + 220480^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 397212 + ... + 510700.

Almost surely, 2^51519012484 is an apocalyptic number.

51519012484 is the 226978-th square number.

It is an amenable number.

51519012484 is a deficient number, since it is larger than the sum of its proper divisors (38640053793).

51519012484 is an frugal number, since it uses more digits than its factorization.

51519012484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226982 (or 113491 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 51519012484 in words is "fifty-one billion, five hundred nineteen million, twelve thousand, four hundred eighty-four".