252571069 has 4 divisors (see below), whose sum is σ = 256128480. Its totient is φ = 249013660.

The previous prime is 252571019. The next prime is 252571079. The reversal of 252571069 is 960175252.

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 252571069 - 2⁹ = 252570557 is a prime.

It is a super-2 number, since 2×252571069² = 127584289791605522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252571019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778599 + ... + 1778740.

It is an arithmetic number, because the mean of its divisors is an integer number (64032120).

Almost surely, 2^252571069 is an apocalyptic number.

It is an amenable number.

252571069 is a deficient number, since it is larger than the sum of its proper divisors (3557411).

252571069 is an equidigital number, since it uses as much as digits as its factorization.

252571069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557410.

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 252571069 is about 15892.4846704346. The cubic root of 252571069 is about 632.1127264141.

The spelling of 252571069 in words is "two hundred fifty-two million, five hundred seventy-one thousand, sixty-nine".