252276665 has 4 divisors (see below), whose sum is σ = 302732004. Its totient is φ = 201821328.

The previous prime is 252276653. The next prime is 252276707. The reversal of 252276665 is 566672252.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52591504 + 199685161 = 7252^2 + 14131^2 .

It is a cyclic number.

It is not a de Polignac number, because 252276665 - 2¹⁰ = 252275641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 25227662 + ... + 25227671.

It is an arithmetic number, because the mean of its divisors is an integer number (75683001).

Almost surely, 2^252276665 is an apocalyptic number.

It is an amenable number.

252276665 is a deficient number, since it is larger than the sum of its proper divisors (50455339).

252276665 is an equidigital number, since it uses as much as digits as its factorization.

252276665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50455338.

The product of its digits is 302400, while the sum is 41.

The square root of 252276665 is about 15883.2196043497. The cubic root of 252276665 is about 631.8670280856.

The spelling of 252276665 in words is "two hundred fifty-two million, two hundred seventy-six thousand, six hundred sixty-five".