52289718 has 32 divisors (see below), whose sum is σ = 117524736. Its totient is φ = 15389088.

The previous prime is 52289707. The next prime is 52289737. The reversal of 52289718 is 81798225.

It is a self number, because there is not a number n which added to its sum of digits gives 52289718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12780 + ... + 16367.

It is an arithmetic number, because the mean of its divisors is an integer number (3672648).

Almost surely, 2^52289718 is an apocalyptic number.

52289718 is an abundant number, since it is smaller than the sum of its proper divisors (65235018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52289718 is a wasteful number, since it uses less digits than its factorization.

52289718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29188.

The product of its digits is 80640, while the sum is 42.

The square root of 52289718 is about 7231.1629770045. The cubic root of 52289718 is about 373.9430218136.

The spelling of 52289718 in words is "fifty-two million, two hundred eighty-nine thousand, seven hundred eighteen".