50865390 has 24 divisors (see below), whose sum is σ = 132250248. Its totient is φ = 13564080.

The previous prime is 50865383. The next prime is 50865427. The reversal of 50865390 is 9356805.

50865390 is a `hidden beast` number, since 508 + 65 + 3 + 90 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 282496 + ... + 282675.

It is an arithmetic number, because the mean of its divisors is an integer number (5510427).

Almost surely, 2^50865390 is an apocalyptic number.

50865390 is an abundant number, since it is smaller than the sum of its proper divisors (81384858).

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

50865390 is a wasteful number, since it uses less digits than its factorization.

50865390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565184 (or 565181 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 50865390 is about 7131.9976163765. The cubic root of 50865390 is about 370.5164203467.

The spelling of 50865390 in words is "fifty million, eight hundred sixty-five thousand, three hundred ninety".