252760687 has 4 divisors (see below), whose sum is σ = 252805696. Its totient is φ = 252715680.

The previous prime is 252760663. The next prime is 252760691. The reversal of 252760687 is 786067252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252760687 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 (252760787) 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, 12639 + ... + 25792.

It is an arithmetic number, because the mean of its divisors is an integer number (63201424).

Almost surely, 2^252760687 is an apocalyptic number.

252760687 is a deficient number, since it is larger than the sum of its proper divisors (45009).

252760687 is an equidigital number, since it uses as much as digits as its factorization.

252760687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45008.

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 252760687 is about 15898.4492011013. The cubic root of 252760687 is about 632.2708732793.

The spelling of 252760687 in words is "two hundred fifty-two million, seven hundred sixty thousand, six hundred eighty-seven".