50978660 has 12 divisors (see below), whose sum is σ = 107055228. Its totient is φ = 20391456.

The previous prime is 50978647. The next prime is 50978671. The reversal of 50978660 is 6687905.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14303524 + 36675136 = 3782^2 + 6056^2 .

It is a hoax number, since the sum of its digits (41) 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, 1274447 + ... + 1274486.

It is an arithmetic number, because the mean of its divisors is an integer number (8921269).

Almost surely, 2^50978660 is an apocalyptic number.

It is an amenable number.

50978660 is an abundant number, since it is smaller than the sum of its proper divisors (56076568).

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

50978660 is a wasteful number, since it uses less digits than its factorization.

50978660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548942 (or 2548940 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 50978660 is about 7139.9341733660. The cubic root of 50978660 is about 370.7912455987.

The spelling of 50978660 in words is "fifty million, nine hundred seventy-eight thousand, six hundred sixty".