52997885 has 4 divisors (see below), whose sum is σ = 63597468. Its totient is φ = 42398304.

The previous prime is 52997881. The next prime is 52997909. The reversal of 52997885 is 58879925.

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 14830201 + 38167684 = 3851^2 + 6178^2 .

It is a cyclic number.

It is not a de Polignac number, because 52997885 - 2² = 52997881 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 (52997881) 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, 5299784 + ... + 5299793.

It is an arithmetic number, because the mean of its divisors is an integer number (15899367).

Almost surely, 2^52997885 is an apocalyptic number.

It is an amenable number.

52997885 is a deficient number, since it is larger than the sum of its proper divisors (10599583).

52997885 is a wasteful number, since it uses less digits than its factorization.

52997885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10599582.

The product of its digits is 1814400, while the sum is 53.

The square root of 52997885 is about 7279.9646290350. The cubic root of 52997885 is about 375.6235787869.

The spelling of 52997885 in words is "fifty-two million, nine hundred ninety-seven thousand, eight hundred eighty-five".