50516661 has 8 divisors (see below), whose sum is σ = 72536800. Its totient is φ = 31087152.

The previous prime is 50516651. The next prime is 50516689. The reversal of 50516661 is 16661505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50516661 - 2¹⁰ = 50515637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50516621) 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, 647611 + ... + 647688.

It is an arithmetic number, because the mean of its divisors is an integer number (9067100).

Almost surely, 2^50516661 is an apocalyptic number.

It is an amenable number.

50516661 is a deficient number, since it is larger than the sum of its proper divisors (22020139).

50516661 is a wasteful number, since it uses less digits than its factorization.

50516661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295315.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 50516661 is about 7107.5073689726. The cubic root of 50516661 is about 369.6677343369.

The spelling of 50516661 in words is "fifty million, five hundred sixteen thousand, six hundred sixty-one".