52997369 has 4 divisors (see below), whose sum is σ = 53142144. Its totient is φ = 52852596.

The previous prime is 52997333. The next prime is 52997389. The reversal of 52997369 is 96379925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52997369 is a prime.

It is a super-2 number, since 2×52997369² = 5617442241844322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52997309) 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, 71837 + ... + 72570.

It is an arithmetic number, because the mean of its divisors is an integer number (13285536).

Almost surely, 2^52997369 is an apocalyptic number.

It is an amenable number.

52997369 is a deficient number, since it is larger than the sum of its proper divisors (144775).

52997369 is a wasteful number, since it uses less digits than its factorization.

52997369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144774.

The product of its digits is 918540, while the sum is 50.

The square root of 52997369 is about 7279.9291892161. The cubic root of 52997369 is about 375.6223597294.

The spelling of 52997369 in words is "fifty-two million, nine hundred ninety-seven thousand, three hundred sixty-nine".