252278673 has 4 divisors (see below), whose sum is σ = 336371568. Its totient is φ = 168185780.

The previous prime is 252278669. The next prime is 252278681. The reversal of 252278673 is 376872252.

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 a cyclic number.

It is not a de Polignac number, because 252278673 - 2² = 252278669 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252278603) 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, 42046443 + ... + 42046448.

It is an arithmetic number, because the mean of its divisors is an integer number (84092892).

Almost surely, 2^252278673 is an apocalyptic number.

It is an amenable number.

252278673 is a deficient number, since it is larger than the sum of its proper divisors (84092895).

252278673 is an equidigital number, since it uses as much as digits as its factorization.

252278673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84092894.

The product of its digits is 282240, while the sum is 42.

The square root of 252278673 is about 15883.2828155895. The cubic root of 252278673 is about 631.8687045329.

The spelling of 252278673 in words is "two hundred fifty-two million, two hundred seventy-eight thousand, six hundred seventy-three".