50457665 has 4 divisors (see below), whose sum is σ = 60549204. Its totient is φ = 40366128.

The previous prime is 50457647. The next prime is 50457689. The reversal of 50457665 is 56675405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13830961 + 36626704 = 3719^2 + 6052^2 .

It is a cyclic number.

It is not a de Polignac number, because 50457665 - 2⁸ = 50457409 is a prime.

It is a Duffinian number.

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, 5045762 + ... + 5045771.

It is an arithmetic number, because the mean of its divisors is an integer number (15137301).

Almost surely, 2^50457665 is an apocalyptic number.

It is an amenable number.

50457665 is a deficient number, since it is larger than the sum of its proper divisors (10091539).

50457665 is a wasteful number, since it uses less digits than its factorization.

50457665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10091538.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 50457665 is about 7103.3558970391. The cubic root of 50457665 is about 369.5237725059.

The spelling of 50457665 in words is "fifty million, four hundred fifty-seven thousand, six hundred sixty-five".