50720520 has 192 divisors, whose sum is σ = 172005120. Its totient is φ = 11917312.

The previous prime is 50720491. The next prime is 50720533. The reversal of 50720520 is 2502705.

It is a super-2 number, since 2×50720520² = 5145142298140800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1079137 + ... + 1079183.

It is an arithmetic number, because the mean of its divisors is an integer number (895860).

Almost surely, 2^50720520 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 50720520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86002560).

50720520 is an abundant number, since it is smaller than the sum of its proper divisors (121284600).

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

50720520 is a wasteful number, since it uses less digits than its factorization.

50720520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 21.

The square root of 50720520 is about 7121.8340334495. The cubic root of 50720520 is about 370.1643292452.

The spelling of 50720520 in words is "fifty million, seven hundred twenty thousand, five hundred twenty".