50615720 has 16 divisors (see below), whose sum is σ = 113885460. Its totient is φ = 20246272.

The previous prime is 50615713. The next prime is 50615729. The reversal of 50615720 is 2751605.

It can be written as a sum of positive squares in 2 ways, for example, as 50608996 + 6724 = 7114^2 + 82^2 .

It is a super-2 number, since 2×50615720² = 5123902222236800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50615720.

It is not an unprimeable number, because it can be changed into a prime (50615729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632657 + ... + 632736.

Almost surely, 2^50615720 is an apocalyptic number.

It is an amenable number.

50615720 is an abundant number, since it is smaller than the sum of its proper divisors (63269740).

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

50615720 is a wasteful number, since it uses less digits than its factorization.

50615720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265404 (or 1265400 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 50615720 is about 7114.4725735644. The cubic root of 50615720 is about 369.9092058690.

The spelling of 50615720 in words is "fifty million, six hundred fifteen thousand, seven hundred twenty".