50815812 has 12 divisors (see below), whose sum is σ = 118570256. Its totient is φ = 16938600.

The previous prime is 50815783. The next prime is 50815841. The reversal of 50815812 is 21851805.

It is an interprime number because it is at equal distance from previous prime (50815783) and next prime (50815841).

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 50815812.

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 3 ways as a sum of consecutive naturals, for example, 2117314 + ... + 2117337.

Almost surely, 2^50815812 is an apocalyptic number.

It is an amenable number.

50815812 is an abundant number, since it is smaller than the sum of its proper divisors (67754444).

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

50815812 is a wasteful number, since it uses less digits than its factorization.

50815812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4234658 (or 4234656 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 50815812 is about 7128.5210247288. The cubic root of 50815812 is about 370.3960016331.

The spelling of 50815812 in words is "fifty million, eight hundred fifteen thousand, eight hundred twelve".