252045049 has 4 divisors (see below), whose sum is σ = 252081280. Its totient is φ = 252008820.

The previous prime is 252045011. The next prime is 252045113. The reversal of 252045049 is 940540252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252045049 - 2¹⁹ = 251520761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252045049.

It is not an unprimeable number, because it can be changed into a prime (252045449) 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 3 ways as a sum of consecutive naturals, for example, 4029 + ... + 22810.

It is an arithmetic number, because the mean of its divisors is an integer number (63020320).

Almost surely, 2^252045049 is an apocalyptic number.

It is an amenable number.

252045049 is a deficient number, since it is larger than the sum of its proper divisors (36231).

252045049 is an equidigital number, since it uses as much as digits as its factorization.

252045049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36230.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 252045049 is about 15875.9267131088. The cubic root of 252045049 is about 631.6735958410.

The spelling of 252045049 in words is "two hundred fifty-two million, forty-five thousand, forty-nine".