51244924554 has 24 divisors (see below), whose sum is σ = 115858091232. Its totient is φ = 16338961320.

The previous prime is 51244924519. The next prime is 51244924583. The reversal of 51244924554 is 45542944215.

51244924554 is a `hidden beast` number, since 5 + 1 + 2 + 4 + 4 + 92 + 4 + 554 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61889592 + ... + 61890419.

It is an arithmetic number, because the mean of its divisors is an integer number (4827420468).

Almost surely, 2^51244924554 is an apocalyptic number.

51244924554 is an abundant number, since it is smaller than the sum of its proper divisors (64613166678).

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

51244924554 is a wasteful number, since it uses less digits than its factorization.

51244924554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123780042 (or 123780039 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The spelling of 51244924554 in words is "fifty-one billion, two hundred forty-four million, nine hundred twenty-four thousand, five hundred fifty-four".