52689479 has 8 divisors (see below), whose sum is σ = 53719680. Its totient is φ = 51668856.

The previous prime is 52689437. The next prime is 52689499. The reversal of 52689479 is 97498625.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52689479 - 2²⁰ = 51640903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52689499) 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, 9254 + ... + 13820.

It is an arithmetic number, because the mean of its divisors is an integer number (6714960).

Almost surely, 2^52689479 is an apocalyptic number.

52689479 is a deficient number, since it is larger than the sum of its proper divisors (1030201).

52689479 is a wasteful number, since it uses less digits than its factorization.

52689479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4789.

The product of its digits is 1088640, while the sum is 50.

The square root of 52689479 is about 7258.7518899601. The cubic root of 52689479 is about 374.8935496369.

The spelling of 52689479 in words is "fifty-two million, six hundred eighty-nine thousand, four hundred seventy-nine".