50724990 has 48 divisors (see below), whose sum is σ = 136146816. Its totient is φ = 13089600.

The previous prime is 50724983. The next prime is 50725009. The reversal of 50724990 is 9942705.

It is a super-2 number, since 2×50724990² = 5146049221000200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6301 + ... + 11880.

It is an arithmetic number, because the mean of its divisors is an integer number (2836392).

Almost surely, 2^50724990 is an apocalyptic number.

50724990 is an abundant number, since it is smaller than the sum of its proper divisors (85421826).

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

50724990 is a wasteful number, since it uses less digits than its factorization.

50724990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18225 (or 18222 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 50724990 is about 7122.1478501924. The cubic root of 50724990 is about 370.1752031213.

The spelling of 50724990 in words is "fifty million, seven hundred twenty-four thousand, nine hundred ninety".