50720556 has 12 divisors (see below), whose sum is σ = 118347992. Its totient is φ = 16906848.

The previous prime is 50720539. The next prime is 50720561. The reversal of 50720556 is 65502705.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2113345 + ... + 2113368.

Almost surely, 2^50720556 is an apocalyptic number.

It is an amenable number.

50720556 is an abundant number, since it is smaller than the sum of its proper divisors (67627436).

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

50720556 is a wasteful number, since it uses less digits than its factorization.

50720556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226720 (or 4226718 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 50720556 is about 7121.8365608879. The cubic root of 50720556 is about 370.1644168226.

The spelling of 50720556 in words is "fifty million, seven hundred twenty thousand, five hundred fifty-six".