52969489 has 4 divisors (see below), whose sum is σ = 53039140. Its totient is φ = 52899840.

The previous prime is 52969487. The next prime is 52969493. The reversal of 52969489 is 98496925.

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 6838225 + 46131264 = 2615^2 + 6792^2 .

It is a cyclic number.

It is not a de Polignac number, because 52969489 - 2¹ = 52969487 is a prime.

It is a super-2 number, since 2×52969489² = 5611533529842242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52969481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33672 + ... + 35209.

It is an arithmetic number, because the mean of its divisors is an integer number (13259785).

Almost surely, 2^52969489 is an apocalyptic number.

It is an amenable number.

52969489 is a deficient number, since it is larger than the sum of its proper divisors (69651).

52969489 is an equidigital number, since it uses as much as digits as its factorization.

52969489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69650.

The product of its digits is 1399680, while the sum is 52.

The square root of 52969489 is about 7278.0140835258. The cubic root of 52969489 is about 375.5564810610.

The spelling of 52969489 in words is "fifty-two million, nine hundred sixty-nine thousand, four hundred eighty-nine".