252787959 has 20 divisors (see below), whose sum is σ = 387832104. Its totient is φ = 163968624.

The previous prime is 252787957. The next prime is 252787999. The reversal of 252787959 is 959787252.

It is not a de Polignac number, because 252787959 - 2¹ = 252787957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252787957) 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 19 ways as a sum of consecutive naturals, for example, 39177 + ... + 45170.

Almost surely, 2^252787959 is an apocalyptic number.

252787959 is a deficient number, since it is larger than the sum of its proper divisors (135044145).

252787959 is an equidigital number, since it uses as much as digits as its factorization.

252787959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84396 (or 84387 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 252787959 is about 15899.3068716847. The cubic root of 252787959 is about 632.2936124051.

The spelling of 252787959 in words is "two hundred fifty-two million, seven hundred eighty-seven thousand, nine hundred fifty-nine".