50664978 has 48 divisors (see below), whose sum is σ = 135110976. Its totient is φ = 13361760.

The previous prime is 50664973. The next prime is 50665007. The reversal of 50664978 is 87946605.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50664973) 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, 13828 + ... + 17103.

It is an arithmetic number, because the mean of its divisors is an integer number (2814812).

Almost surely, 2^50664978 is an apocalyptic number.

50664978 is an abundant number, since it is smaller than the sum of its proper divisors (84445998).

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

50664978 is a wasteful number, since it uses less digits than its factorization.

50664978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30959 (or 30956 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 50664978 is about 7117.9335484395. The cubic root of 50664978 is about 370.0291625419.

The spelling of 50664978 in words is "fifty million, six hundred sixty-four thousand, nine hundred seventy-eight".