52505269 has 4 divisors (see below), whose sum is σ = 52596844. Its totient is φ = 52413696.

The previous prime is 52505263. The next prime is 52505311. The reversal of 52505269 is 96250525.

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 28622500 + 23882769 = 5350^2 + 4887^2 .

It is a cyclic number.

It is not a de Polignac number, because 52505269 - 2³ = 52505261 is a prime.

It is a super-2 number, since 2×52505269² = 5513606545524722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52505261) 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, 44922 + ... + 46075.

It is an arithmetic number, because the mean of its divisors is an integer number (13149211).

Almost surely, 2^52505269 is an apocalyptic number.

It is an amenable number.

52505269 is a deficient number, since it is larger than the sum of its proper divisors (91575).

52505269 is an equidigital number, since it uses as much as digits as its factorization.

52505269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91574.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 52505269 is about 7246.0519595156. The cubic root of 52505269 is about 374.4561455668.

The spelling of 52505269 in words is "fifty-two million, five hundred five thousand, two hundred sixty-nine".