252817169 has 4 divisors (see below), whose sum is σ = 275800560. Its totient is φ = 229833780.

The previous prime is 252817141. The next prime is 252817171. The reversal of 252817169 is 961718252.

252817169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 252817169 - 2²⁰ = 251768593 is a prime.

It is a super-2 number, since 2×252817169² = 127833041882349122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252817109) 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, 11491679 + ... + 11491700.

It is an arithmetic number, because the mean of its divisors is an integer number (68950140).

Almost surely, 2^252817169 is an apocalyptic number.

It is an amenable number.

252817169 is a deficient number, since it is larger than the sum of its proper divisors (22983391).

252817169 is a wasteful number, since it uses less digits than its factorization.

252817169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22983390.

The product of its digits is 60480, while the sum is 41.

The square root of 252817169 is about 15900.2254386534. The cubic root of 252817169 is about 632.3179656023.

The spelling of 252817169 in words is "two hundred fifty-two million, eight hundred seventeen thousand, one hundred sixty-nine".