52165969 has 2 divisors, whose sum is σ = 52165970. Its totient is φ = 52165968.

The previous prime is 52165933. The next prime is 52165973. The reversal of 52165969 is 96956125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26915344 + 25250625 = 5188^2 + 5025^2 .

It is a cyclic number.

It is not a de Polignac number, because 52165969 - 2⁹ = 52165457 is a prime.

It is a super-2 number, since 2×52165969² = 5442576643417922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52165369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26082984 + 26082985.

It is an arithmetic number, because the mean of its divisors is an integer number (26082985).

Almost surely, 2^52165969 is an apocalyptic number.

It is an amenable number.

52165969 is a deficient number, since it is larger than the sum of its proper divisors (1).

52165969 is an equidigital number, since it uses as much as digits as its factorization.

52165969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 43.

The square root of 52165969 is about 7222.6012627031. The cubic root of 52165969 is about 373.6477972471.

The spelling of 52165969 in words is "fifty-two million, one hundred sixty-five thousand, nine hundred sixty-nine".