252669 has 4 divisors (see below), whose sum is σ = 336896. Its totient is φ = 168444.

The previous prime is 252667. The next prime is 252691. The reversal of 252669 is 966252.

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 not a de Polignac number, because 252669 - 2¹ = 252667 is a prime.

It is a super-2 number, since 2×252669² = 127683247122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252667) 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, 42109 + ... + 42114.

It is an arithmetic number, because the mean of its divisors is an integer number (84224).

2²⁵²⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

252669 is a deficient number, since it is larger than the sum of its proper divisors (84227).

252669 is an equidigital number, since it uses as much as digits as its factorization.

252669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84226.

The product of its digits is 6480, while the sum is 30.

The square root of 252669 is about 502.6619142127. The cubic root of 252669 is about 63.2194413564.

The spelling of 252669 in words is "two hundred fifty-two thousand, six hundred sixty-nine".