50020155 has 12 divisors (see below), whose sum is σ = 86701680. Its totient is φ = 26677392.

The previous prime is 50020151. The next prime is 50020163. The reversal of 50020155 is 55102005.

It is not a de Polignac number, because 50020155 - 2² = 50020151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50020151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555735 + ... + 555824.

It is an arithmetic number, because the mean of its divisors is an integer number (7225140).

Almost surely, 2^50020155 is an apocalyptic number.

50020155 is a deficient number, since it is larger than the sum of its proper divisors (36681525).

50020155 is a wasteful number, since it uses less digits than its factorization.

50020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111570 (or 1111567 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 50020155 is about 7072.4928419900. The cubic root of 50020155 is about 368.4526443175.

The spelling of 50020155 in words is "fifty million, twenty thousand, one hundred fifty-five".