50978808 has 80 divisors (see below), whose sum is σ = 144009360. Its totient is φ = 16848000.

The previous prime is 50978789. The next prime is 50978813. The reversal of 50978808 is 80887905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97588 + ... + 98108.

It is an arithmetic number, because the mean of its divisors is an integer number (1800117).

Almost surely, 2^50978808 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 50978808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72004680).

50978808 is an abundant number, since it is smaller than the sum of its proper divisors (93030552).

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

50978808 is a wasteful number, since it uses less digits than its factorization.

50978808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 50978808 is about 7139.9445375997. The cubic root of 50978808 is about 370.7916044223.

The spelling of 50978808 in words is "fifty million, nine hundred seventy-eight thousand, eight hundred eight".