50215890 has 32 divisors (see below), whose sum is σ = 121104576. Its totient is φ = 13325760.

The previous prime is 50215889. The next prime is 50215901. The reversal of 50215890 is 9851205.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2364 + ... + 10296.

It is an arithmetic number, because the mean of its divisors is an integer number (3784518).

Almost surely, 2^50215890 is an apocalyptic number.

50215890 is an abundant number, since it is smaller than the sum of its proper divisors (70888686).

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

50215890 is a wasteful number, since it uses less digits than its factorization.

50215890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8154.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 50215890 is about 7086.3170970540. The cubic root of 50215890 is about 368.9326189200.

The spelling of 50215890 in words is "fifty million, two hundred fifteen thousand, eight hundred ninety".