50564661 has 32 divisors (see below), whose sum is σ = 80793600. Its totient is φ = 27518400.

The previous prime is 50564641. The next prime is 50564663. The reversal of 50564661 is 16646505.

It is not a de Polignac number, because 50564661 - 2⁵ = 50564629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50564663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47586 + ... + 48636.

It is an arithmetic number, because the mean of its divisors is an integer number (2524800).

Almost surely, 2^50564661 is an apocalyptic number.

It is an amenable number.

50564661 is a deficient number, since it is larger than the sum of its proper divisors (30228939).

50564661 is a wasteful number, since it uses less digits than its factorization.

50564661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 50564661 is about 7110.8832784683. The cubic root of 50564661 is about 369.7847810949.

The spelling of 50564661 in words is "fifty million, five hundred sixty-four thousand, six hundred sixty-one".