252523999 has 12 divisors (see below), whose sum is σ = 316349544. Its totient is φ = 199798704.

The previous prime is 252523991. The next prime is 252524021. The reversal of 252523999 is 999325252.

It is not a de Polignac number, because 252523999 - 2³ = 252523991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252523991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197577 + ... + 198850.

It is an arithmetic number, because the mean of its divisors is an integer number (26362462).

Almost surely, 2^252523999 is an apocalyptic number.

252523999 is a deficient number, since it is larger than the sum of its proper divisors (63825545).

252523999 is a wasteful number, since it uses less digits than its factorization.

252523999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396454 (or 396447 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The square root of 252523999 is about 15891.0037127930. The cubic root of 252523999 is about 632.0734564181.

The spelling of 252523999 in words is "two hundred fifty-two million, five hundred twenty-three thousand, nine hundred ninety-nine".