51338900554 has 8 divisors (see below), whose sum is σ = 77009606820. Its totient is φ = 25669031616.

The previous prime is 51338900539. The next prime is 51338900609. The reversal of 51338900554 is 45500983315.

It can be written as a sum of positive squares in 2 ways, for example, as 36437083225 + 14901817329 = 190885^2 + 122073^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 51338900554.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22809 + ... + 321244.

Almost surely, 2^51338900554 is an apocalyptic number.

51338900554 is a deficient number, since it is larger than the sum of its proper divisors (25670706266).

51338900554 is a wasteful number, since it uses less digits than its factorization.

51338900554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418664.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 51338900554 in words is "fifty-one billion, three hundred thirty-eight million, nine hundred thousand, five hundred fifty-four".