252018999 has 32 divisors (see below), whose sum is σ = 401849280. Its totient is φ = 155520000.

The previous prime is 252018997. The next prime is 252019003. The reversal of 252018999 is 999810252.

It is not a de Polignac number, because 252018999 - 2¹ = 252018997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252018997) 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 31 ways as a sum of consecutive naturals, for example, 23499 + ... + 32499.

It is an arithmetic number, because the mean of its divisors is an integer number (12557790).

Almost surely, 2^252018999 is an apocalyptic number.

252018999 is a deficient number, since it is larger than the sum of its proper divisors (149830281).

252018999 is a wasteful number, since it uses less digits than its factorization.

252018999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9088 (or 9082 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 252018999 is about 15875.1062673609. The cubic root of 252018999 is about 631.6518329800.

The spelling of 252018999 in words is "two hundred fifty-two million, eighteen thousand, nine hundred ninety-nine".