52209418 has 8 divisors (see below), whose sum is σ = 78685920. Its totient is φ = 25980780.

The previous prime is 52209413. The next prime is 52209419. The reversal of 52209418 is 81490225.

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

It is a self number, because there is not a number n which added to its sum of digits gives 52209418.

It is not an unprimeable number, because it can be changed into a prime (52209413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61438 + ... + 62281.

It is an arithmetic number, because the mean of its divisors is an integer number (9835740).

Almost surely, 2^52209418 is an apocalyptic number.

52209418 is a deficient number, since it is larger than the sum of its proper divisors (26476502).

52209418 is a wasteful number, since it uses less digits than its factorization.

52209418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123932.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 52209418 is about 7225.6084864875. The cubic root of 52209418 is about 373.7515054581.

The spelling of 52209418 in words is "fifty-two million, two hundred nine thousand, four hundred eighteen".