50521900320 has 144 divisors (see below), whose sum is σ = 177967625472. Its totient is φ = 13037898240.

The previous prime is 50521900307. The next prime is 50521900321. The reversal of 50521900320 is 2300912505.

50521900320 is a `hidden beast` number, since 50 + 521 + 90 + 0 + 3 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×50521900320² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50521900321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521242 + ... + 610521.

It is an arithmetic number, because the mean of its divisors is an integer number (1235886288).

Almost surely, 2^50521900320 is an apocalyptic number.

It is an amenable number.

50521900320 is an abundant number, since it is smaller than the sum of its proper divisors (127445725152).

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

50521900320 is a wasteful number, since it uses less digits than its factorization.

50521900320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131815 (or 1131804 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 50521900320 in words is "fifty billion, five hundred twenty-one million, nine hundred thousand, three hundred twenty".