252669019 has 4 divisors (see below), whose sum is σ = 258831720. Its totient is φ = 246506320.

The previous prime is 252669013. The next prime is 252669047. The reversal of 252669019 is 910966252.

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 252669019 - 2¹⁷ = 252537947 is a prime.

It is a super-2 number, since 2×252669019² = 127683266324844722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252669013) 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, 3081289 + ... + 3081370.

It is an arithmetic number, because the mean of its divisors is an integer number (64707930).

Almost surely, 2^252669019 is an apocalyptic number.

252669019 is a deficient number, since it is larger than the sum of its proper divisors (6162701).

252669019 is an equidigital number, since it uses as much as digits as its factorization.

252669019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6162700.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 252669019 is about 15895.5660169747. The cubic root of 252669019 is about 632.1944294105.

The spelling of 252669019 in words is "two hundred fifty-two million, six hundred sixty-nine thousand, nineteen".