252555999 has 8 divisors (see below), whose sum is σ = 354464640. Its totient is φ = 159509016.

The previous prime is 252555991. The next prime is 252556001. The reversal of 252555999 is 999555252.

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

It is not a de Polignac number, because 252555999 - 2³ = 252555991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252555991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215347 + ... + 2215460.

It is an arithmetic number, because the mean of its divisors is an integer number (44308080).

Almost surely, 2^252555999 is an apocalyptic number.

252555999 is a deficient number, since it is larger than the sum of its proper divisors (101908641).

252555999 is a wasteful number, since it uses less digits than its factorization.

252555999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430829.

The product of its digits is 1822500, while the sum is 51.

The square root of 252555999 is about 15892.0105398908. The cubic root of 252555999 is about 632.1001542058.

The spelling of 252555999 in words is "two hundred fifty-two million, five hundred fifty-five thousand, nine hundred ninety-nine".