50990520 has 64 divisors (see below), whose sum is σ = 174827520. Its totient is φ = 11654784.

The previous prime is 50990519. The next prime is 50990549. The reversal of 50990520 is 2509905.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29512 + ... + 31191.

It is an arithmetic number, because the mean of its divisors is an integer number (2731680).

Almost surely, 2^50990520 is an apocalyptic number.

It is an amenable number.

50990520 is an abundant number, since it is smaller than the sum of its proper divisors (123837000).

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

50990520 is a wasteful number, since it uses less digits than its factorization.

50990520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60724 (or 60720 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 50990520 is about 7140.7646649361. The cubic root of 50990520 is about 370.8199977810.

The spelling of 50990520 in words is "fifty million, nine hundred ninety thousand, five hundred twenty".