252223009 has 4 divisors (see below), whose sum is σ = 257589504. Its totient is φ = 246856516.

The previous prime is 252223003. The next prime is 252223031. The reversal of 252223009 is 900322252.

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 252223009 - 2⁷ = 252222881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252223003) 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, 2683177 + ... + 2683270.

It is an arithmetic number, because the mean of its divisors is an integer number (64397376).

Almost surely, 2^252223009 is an apocalyptic number.

It is an amenable number.

252223009 is a deficient number, since it is larger than the sum of its proper divisors (5366495).

252223009 is an equidigital number, since it uses as much as digits as its factorization.

252223009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5366494.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 252223009 is about 15881.5304363276. The cubic root of 252223009 is about 631.8222282476.

The spelling of 252223009 in words is "two hundred fifty-two million, two hundred twenty-three thousand, nine".