50638890 has 16 divisors (see below), whose sum is σ = 121533408. Its totient is φ = 13503696.

The previous prime is 50638879. The next prime is 50638891. The reversal of 50638890 is 9883605.

It is not an unprimeable number, because it can be changed into a prime (50638891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 843952 + ... + 844011.

It is an arithmetic number, because the mean of its divisors is an integer number (7595838).

Almost surely, 2^50638890 is an apocalyptic number.

50638890 is an abundant number, since it is smaller than the sum of its proper divisors (70894518).

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

50638890 is a wasteful number, since it uses less digits than its factorization.

50638890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1687973.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 50638890 is about 7116.1007581400. The cubic root of 50638890 is about 369.9656408318.

The spelling of 50638890 in words is "fifty million, six hundred thirty-eight thousand, eight hundred ninety".