50666664 has 32 divisors (see below), whose sum is σ = 134118720. Its totient is φ = 15895296.

The previous prime is 50666657. The next prime is 50666669. The reversal of 50666664 is 46666605.

It is a super-2 number, since 2×50666664² = 5134221681777792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50666669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61684 + ... + 62499.

It is an arithmetic number, because the mean of its divisors is an integer number (4191210).

Almost surely, 2^50666664 is an apocalyptic number.

It is an amenable number.

50666664 is an abundant number, since it is smaller than the sum of its proper divisors (83452056).

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

50666664 is a wasteful number, since it uses less digits than its factorization.

50666664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124209 (or 124205 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 50666664 is about 7118.0519807037. The cubic root of 50666664 is about 370.0332670356.

The spelling of 50666664 in words is "fifty million, six hundred sixty-six thousand, six hundred sixty-four".