252279669 has 16 divisors (see below), whose sum is σ = 340046784. Its totient is φ = 166358400.

The previous prime is 252279659. The next prime is 252279673. The reversal of 252279669 is 966972252.

It is a happy number.

It is not a de Polignac number, because 252279669 - 2²⁵ = 218725237 is a prime.

It is a super-2 number, since 2×252279669² = 127290062781499122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252279659) 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 15 ways as a sum of consecutive naturals, for example, 145729 + ... + 147449.

It is an arithmetic number, because the mean of its divisors is an integer number (21252924).

Almost surely, 2^252279669 is an apocalyptic number.

It is an amenable number.

252279669 is a deficient number, since it is larger than the sum of its proper divisors (87767115).

252279669 is a wasteful number, since it uses less digits than its factorization.

252279669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228.

The product of its digits is 816480, while the sum is 48.

The square root of 252279669 is about 15883.3141692784. The cubic root of 252279669 is about 631.8695360742.

The spelling of 252279669 in words is "two hundred fifty-two million, two hundred seventy-nine thousand, six hundred sixty-nine".