252185366 has 8 divisors (see below), whose sum is σ = 398187480. Its totient is φ = 119456208.

The previous prime is 252185359. The next prime is 252185371. The reversal of 252185366 is 663581252.

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

It is a Harshad number since it is a multiple of its sum of digits (38), and also a Moran number because the ratio is a prime number: 6636457 = 252185366 / (2 + 5 + 2 + 1 + 8 + 5 + 3 + 6 + 6).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3318191 + ... + 3318266.

It is an arithmetic number, because the mean of its divisors is an integer number (49773435).

Almost surely, 2^252185366 is an apocalyptic number.

252185366 is a deficient number, since it is larger than the sum of its proper divisors (146002114).

252185366 is a wasteful number, since it uses less digits than its factorization.

252185366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6636478.

The product of its digits is 86400, while the sum is 38.

The square root of 252185366 is about 15880.3452733245. The cubic root of 252185366 is about 631.7907946002.

The spelling of 252185366 in words is "two hundred fifty-two million, one hundred eighty-five thousand, three hundred sixty-six".