50131553408 has 16 divisors (see below), whose sum is σ = 99871454310. Its totient is φ = 25065776640.

The previous prime is 50131553393. The next prime is 50131553429. The reversal of 50131553408 is 80435513105.

It can be written as a sum of positive squares in only one way, i.e., 37732285504 + 12399267904 = 194248^2 + 111352^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195826253 + ... + 195826508.

Almost surely, 2^50131553408 is an apocalyptic number.

It is an amenable number.

50131553408 is a deficient number, since it is larger than the sum of its proper divisors (49739900902).

50131553408 is an equidigital number, since it uses as much as digits as its factorization.

50131553408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391652775 (or 391652763 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The spelling of 50131553408 in words is "fifty billion, one hundred thirty-one million, five hundred fifty-three thousand, four hundred eight".