50155390 has 16 divisors (see below), whose sum is σ = 90360432. Its totient is φ = 20044224.

The previous prime is 50155381. The next prime is 50155393. The reversal of 50155390 is 9355105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50155393) 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 7 ways as a sum of consecutive naturals, for example, 20197 + ... + 22543.

It is an arithmetic number, because the mean of its divisors is an integer number (5647527).

Almost surely, 2^50155390 is an apocalyptic number.

50155390 is a deficient number, since it is larger than the sum of its proper divisors (40205042).

50155390 is a wasteful number, since it uses less digits than its factorization.

50155390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4491.

The product of its (nonzero) digits is 3375, while the sum is 28.

The square root of 50155390 is about 7082.0470204596. The cubic root of 50155390 is about 368.7843962935.

The spelling of 50155390 in words is "fifty million, one hundred fifty-five thousand, three hundred ninety".