50990156100 has 405 divisors, whose sum is σ = 179914775733. Its totient is φ = 12486389760.

The previous prime is 50990156093. The next prime is 50990156149. The reversal of 50990156100 is 165109905.

The square root of 50990156100 is 225810.

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

50990156100 is a `hidden beast` number, since 5 + 0 + 9 + 90 + 1 + 561 + 0 + 0 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 50973899076 + 16257024 = 225774^2 + 4032^2 .

It is a tau number, because it is divible by the number of its divisors (405).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 264197604 + ... + 264197796.

Almost surely, 2^50990156100 is an apocalyptic number.

50990156100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50990156100 is the 225810-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50990156100

50990156100 is an abundant number, since it is smaller than the sum of its proper divisors (128924619633).

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

50990156100 is a wasteful number, since it uses less digits than its factorization.

50990156100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

Multiplying 50990156100 by its sum of digits (36), we get a square (1835645619600 = 1354860²).

50990156100 divided by its sum of digits (36) gives a square (1416393225 = 37635²).

The spelling of 50990156100 in words is "fifty billion, nine hundred ninety million, one hundred fifty-six thousand, one hundred".