252415018 has 16 divisors (see below), whose sum is σ = 395974656. Its totient is φ = 120448240.

The previous prime is 252415013. The next prime is 252415027. The reversal of 252415018 is 810514252.

It is not an unprimeable number, because it can be changed into a prime (252415013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15255 + ... + 27157.

It is an arithmetic number, because the mean of its divisors is an integer number (24748416).

Almost surely, 2^252415018 is an apocalyptic number.

252415018 is a deficient number, since it is larger than the sum of its proper divisors (143559638).

252415018 is a wasteful number, since it uses less digits than its factorization.

252415018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12389.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 252415018 is about 15887.5743271275. The cubic root of 252415018 is about 631.9825160067.

The spelling of 252415018 in words is "two hundred fifty-two million, four hundred fifteen thousand, eighteen".