52977891 has 8 divisors (see below), whose sum is σ = 70671040. Its totient is φ = 35301672.

The previous prime is 52977889. The next prime is 52977893. The reversal of 52977891 is 19877925.

It is an interprime number because it is at equal distance from previous prime (52977889) and next prime (52977893).

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

It is not a de Polignac number, because 52977891 - 2¹ = 52977889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52977891.

It is not an unprimeable number, because it can be changed into a prime (52977893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8856 + ... + 13578.

It is an arithmetic number, because the mean of its divisors is an integer number (8833880).

Almost surely, 2^52977891 is an apocalyptic number.

52977891 is a deficient number, since it is larger than the sum of its proper divisors (17693149).

52977891 is a wasteful number, since it uses less digits than its factorization.

52977891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8465.

The product of its digits is 317520, while the sum is 48.

The square root of 52977891 is about 7278.5912785374. The cubic root of 52977891 is about 375.5763368861.

The spelling of 52977891 in words is "fifty-two million, nine hundred seventy-seven thousand, eight hundred ninety-one".