50155920 has 60 divisors (see below), whose sum is σ = 168442716. Its totient is φ = 13374720.

The previous prime is 50155913. The next prime is 50155921. The reversal of 50155920 is 2955105.

50155920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8785296 + 41370624 = 2964^2 + 6432^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×50155920² = 5031232622092800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50155921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34111 + ... + 35550.

Almost surely, 2^50155920 is an apocalyptic number.

It is an amenable number.

50155920 is an abundant number, since it is smaller than the sum of its proper divisors (118286796).

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

50155920 is a wasteful number, since it uses less digits than its factorization.

50155920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69680 (or 69671 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 27.

The square root of 50155920 is about 7082.0844389205. The cubic root of 50155920 is about 368.7856952901.

The spelling of 50155920 in words is "fifty million, one hundred fifty-five thousand, nine hundred twenty".