50879520 has 144 divisors (see below), whose sum is σ = 176019480. Its totient is φ = 13381632.

The previous prime is 50879513. The next prime is 50879527. The reversal of 50879520 is 2597805.

50879520 is a `hidden beast` number, since 50 + 87 + 9 + 520 = 666.

It is an interprime number because it is at equal distance from previous prime (50879513) and next prime (50879527).

It can be written as a sum of positive squares in 4 ways, for example, as 37307664 + 13571856 = 6108^2 + 3684^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (50879527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127962 + ... + 128358.

Almost surely, 2^50879520 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 50879520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88009740).

50879520 is an abundant number, since it is smaller than the sum of its proper divisors (125139960).

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

50879520 is a wasteful number, since it uses less digits than its factorization.

50879520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507 (or 496 counting only the distinct ones).

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

The square root of 50879520 is about 7132.9881536422. The cubic root of 50879520 is about 370.5507260066.

The spelling of 50879520 in words is "fifty million, eight hundred seventy-nine thousand, five hundred twenty".