50979880 has 64 divisors (see below), whose sum is σ = 132013440. Its totient is φ = 17356032.

The previous prime is 50979871. The next prime is 50979881. The reversal of 50979880 is 8897905.

It is a self number, because there is not a number n which added to its sum of digits gives 50979880.

It is not an unprimeable number, because it can be changed into a prime (50979881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45082 + ... + 46198.

It is an arithmetic number, because the mean of its divisors is an integer number (2062710).

Almost surely, 2^50979880 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 50979880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66006720).

50979880 is an abundant number, since it is smaller than the sum of its proper divisors (81033560).

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

50979880 is a wasteful number, since it uses less digits than its factorization.

50979880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298 (or 1294 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 50979880 is about 7140.0196078162. The cubic root of 50979880 is about 370.7942034488.

The spelling of 50979880 in words is "fifty million, nine hundred seventy-nine thousand, eight hundred eighty".