52515569 has 2 divisors, whose sum is σ = 52515570. Its totient is φ = 52515568.

The previous prime is 52515553. The next prime is 52515583. The reversal of 52515569 is 96551525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52417600 + 97969 = 7240^2 + 313^2 .

It is a cyclic number.

It is not a de Polignac number, because 52515569 - 2⁴ = 52515553 is a prime.

It is a super-2 number, since 2×52515569² = 5515769974787522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52575569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26257784 + 26257785.

It is an arithmetic number, because the mean of its divisors is an integer number (26257785).

Almost surely, 2^52515569 is an apocalyptic number.

It is an amenable number.

52515569 is a deficient number, since it is larger than the sum of its proper divisors (1).

52515569 is an equidigital number, since it uses as much as digits as its factorization.

52515569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 38.

The square root of 52515569 is about 7246.7626565246. The cubic root of 52515569 is about 374.4806297516.

The spelling of 52515569 in words is "fifty-two million, five hundred fifteen thousand, five hundred sixty-nine".