50121631250 has 72 divisors (see below), whose sum is σ = 99828571500. Its totient is φ = 18868640000.

The previous prime is 50121631247. The next prime is 50121631279. The reversal of 50121631250 is 5213612105.

It can be written as a sum of positive squares in 18 ways, for example, as 33949168009 + 16172463241 = 184253^2 + 127171^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1792376 + ... + 1820124.

Almost surely, 2^50121631250 is an apocalyptic number.

50121631250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50121631250 is a deficient number, since it is larger than the sum of its proper divisors (49706940250).

50121631250 is an equidigital number, since it uses as much as digits as its factorization.

50121631250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27810 (or 27773 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 50121631250 in words is "fifty billion, one hundred twenty-one million, six hundred thirty-one thousand, two hundred fifty".