252667247 has 4 divisors (see below), whose sum is σ = 288762576. Its totient is φ = 216571920.

The previous prime is 252667229. The next prime is 252667279. The reversal of 252667247 is 742766252.

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 252667247 - 2⁸ = 252666991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252667747) 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, 18047654 + ... + 18047667.

It is an arithmetic number, because the mean of its divisors is an integer number (72190644).

Almost surely, 2^252667247 is an apocalyptic number.

252667247 is a deficient number, since it is larger than the sum of its proper divisors (36095329).

252667247 is an equidigital number, since it uses as much as digits as its factorization.

252667247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36095328.

The product of its digits is 282240, while the sum is 41.

The square root of 252667247 is about 15895.5102780628. The cubic root of 252667247 is about 632.1929515203.

The spelling of 252667247 in words is "two hundred fifty-two million, six hundred sixty-seven thousand, two hundred forty-seven".