51240660496 has 15 divisors (see below), whose sum is σ = 99280534063. Its totient is φ = 25619877520.

The previous prime is 51240660463. The next prime is 51240660533. The reversal of 51240660496 is 69406604215.

The square root of 51240660496 is 226364.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 877161 + ... + 933751.

Almost surely, 2^51240660496 is an apocalyptic number.

51240660496 is the 226364-th square number.

It is an amenable number.

51240660496 is a deficient number, since it is larger than the sum of its proper divisors (48039873567).

51240660496 is an frugal number, since it uses more digits than its factorization.

51240660496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113190 (or 56593 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 51240660496 in words is "fifty-one billion, two hundred forty million, six hundred sixty thousand, four hundred ninety-six".