252846991 has 4 divisors (see below), whose sum is σ = 253366672. Its totient is φ = 252327312.

The previous prime is 252846983. The next prime is 252847039. The reversal of 252846991 is 199648252.

252846991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 252846991 - 2³ = 252846983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252849991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259110 + ... + 260083.

It is an arithmetic number, because the mean of its divisors is an integer number (63341668).

Almost surely, 2^252846991 is an apocalyptic number.

252846991 is a deficient number, since it is larger than the sum of its proper divisors (519681).

252846991 is an equidigital number, since it uses as much as digits as its factorization.

252846991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519680.

The product of its digits is 311040, while the sum is 46.

The square root of 252846991 is about 15901.1631964457. The cubic root of 252846991 is about 632.3428271061.

The spelling of 252846991 in words is "two hundred fifty-two million, eight hundred forty-six thousand, nine hundred ninety-one".