50817816 has 48 divisors (see below), whose sum is σ = 157294800. Its totient is φ = 14519232.

The previous prime is 50817797. The next prime is 50817817. The reversal of 50817816 is 61871805.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50817817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49911 + ... + 50918.

It is an arithmetic number, because the mean of its divisors is an integer number (3276975).

Almost surely, 2^50817816 is an apocalyptic number.

50817816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

50817816 is an abundant number, since it is smaller than the sum of its proper divisors (106476984).

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

50817816 is a wasteful number, since it uses less digits than its factorization.

50817816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100848 (or 100841 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 50817816 is about 7128.6615854591. The cubic root of 50817816 is about 370.4008706151.

The spelling of 50817816 in words is "fifty million, eight hundred seventeen thousand, eight hundred sixteen".