252689522 has 8 divisors (see below), whose sum is σ = 379177200. Its totient is φ = 126297124.

The previous prime is 252689491. The next prime is 252689527. The reversal of 252689522 is 225986252.

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 252689522.

It is not an unprimeable number, because it can be changed into a prime (252689527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16772 + ... + 28047.

It is an arithmetic number, because the mean of its divisors is an integer number (47397150).

Almost surely, 2^252689522 is an apocalyptic number.

252689522 is a deficient number, since it is larger than the sum of its proper divisors (126487678).

252689522 is a wasteful number, since it uses less digits than its factorization.

252689522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47640.

The product of its digits is 172800, while the sum is 41.

The square root of 252689522 is about 15896.2109321687. The cubic root of 252689522 is about 632.2115288975.

The spelling of 252689522 in words is "two hundred fifty-two million, six hundred eighty-nine thousand, five hundred twenty-two".