252887555 has 4 divisors (see below), whose sum is σ = 303465072. Its totient is φ = 202310040.

The previous prime is 252887533. The next prime is 252887561. The reversal of 252887555 is 555788252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252887555 - 2¹⁰ = 252886531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25288751 + ... + 25288760.

It is an arithmetic number, because the mean of its divisors is an integer number (75866268).

Almost surely, 2^252887555 is an apocalyptic number.

252887555 is a deficient number, since it is larger than the sum of its proper divisors (50577517).

252887555 is an equidigital number, since it uses as much as digits as its factorization.

252887555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50577516.

The product of its digits is 1120000, while the sum is 47.

The square root of 252887555 is about 15902.4386494651. The cubic root of 252887555 is about 632.3766406821.

The spelling of 252887555 in words is "two hundred fifty-two million, eight hundred eighty-seven thousand, five hundred fifty-five".