52549969 has 2 divisors, whose sum is σ = 52549970. Its totient is φ = 52549968.

The previous prime is 52549949. The next prime is 52550033. The reversal of 52549969 is 96994525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47775744 + 4774225 = 6912^2 + 2185^2 .

It is a cyclic number.

It is not a de Polignac number, because 52549969 - 2¹¹ = 52547921 is a prime.

It is a super-2 number, since 2×52549969² = 5522998483801922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52549949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26274984 + 26274985.

It is an arithmetic number, because the mean of its divisors is an integer number (26274985).

Almost surely, 2^52549969 is an apocalyptic number.

It is an amenable number.

52549969 is a deficient number, since it is larger than the sum of its proper divisors (1).

52549969 is an equidigital number, since it uses as much as digits as its factorization.

52549969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 49.

The square root of 52549969 is about 7249.1357415902. The cubic root of 52549969 is about 374.5623789811.

The spelling of 52549969 in words is "fifty-two million, five hundred forty-nine thousand, nine hundred sixty-nine".