52439369 has 8 divisors (see below), whose sum is σ = 53813760. Its totient is φ = 51069600.

The previous prime is 52439363. The next prime is 52439371. The reversal of 52439369 is 96393425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52439369 - 2²⁰ = 51390793 is a prime.

It is a super-2 number, since 2×52439369² = 5499774842236322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52439363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41984 + ... + 43214.

It is an arithmetic number, because the mean of its divisors is an integer number (6726720).

Almost surely, 2^52439369 is an apocalyptic number.

It is an amenable number.

52439369 is a deficient number, since it is larger than the sum of its proper divisors (1374391).

52439369 is a wasteful number, since it uses less digits than its factorization.

52439369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311.

The product of its digits is 174960, while the sum is 41.

The square root of 52439369 is about 7241.5032279217. The cubic root of 52439369 is about 374.2994184951.

It can be divided in two parts, 524 and 39369, that added together give a palindrome (39893).

The spelling of 52439369 in words is "fifty-two million, four hundred thirty-nine thousand, three hundred sixty-nine".