50985720 has 128 divisors (see below), whose sum is σ = 180014400. Its totient is φ = 12791808.

The previous prime is 50985707. The next prime is 50985757. The reversal of 50985720 is 2758905.

50985720 is a `hidden beast` number, since 509 + 85 + 72 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16972 + ... + 19748.

Almost surely, 2^50985720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50985720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90007200).

50985720 is an abundant number, since it is smaller than the sum of its proper divisors (129028680).

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

50985720 is a wasteful number, since it uses less digits than its factorization.

50985720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814 (or 2804 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 50985720 is about 7140.4285585671. The cubic root of 50985720 is about 370.8083616845.

The spelling of 50985720 in words is "fifty million, nine hundred eighty-five thousand, seven hundred twenty".