52377665 has 4 divisors (see below), whose sum is σ = 62853204. Its totient is φ = 41902128.

The previous prime is 52377649. The next prime is 52377667. The reversal of 52377665 is 56677325.

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 37662769 + 14714896 = 6137^2 + 3836^2 .

It is a cyclic number.

It is not a de Polignac number, because 52377665 - 2⁴ = 52377649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52377667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5237762 + ... + 5237771.

It is an arithmetic number, because the mean of its divisors is an integer number (15713301).

Almost surely, 2^52377665 is an apocalyptic number.

It is an amenable number.

52377665 is a deficient number, since it is larger than the sum of its proper divisors (10475539).

52377665 is a wasteful number, since it uses less digits than its factorization.

52377665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475538.

The product of its digits is 264600, while the sum is 41.

The square root of 52377665 is about 7237.2415325178. The cubic root of 52377665 is about 374.1525515106.

The spelling of 52377665 in words is "fifty-two million, three hundred seventy-seven thousand, six hundred sixty-five".