252503009 has 16 divisors (see below), whose sum is σ = 282839040. Its totient is φ = 223434960.

The previous prime is 252503003. The next prime is 252503021. The reversal of 252503009 is 900305252.

It is a cyclic number.

It is not a de Polignac number, because 252503009 - 2¹² = 252498913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252503003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169064 + ... + 170550.

It is an arithmetic number, because the mean of its divisors is an integer number (17677440).

Almost surely, 2^252503009 is an apocalyptic number.

It is an amenable number.

252503009 is a deficient number, since it is larger than the sum of its proper divisors (30336031).

252503009 is a wasteful number, since it uses less digits than its factorization.

252503009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 252503009 is about 15890.3432624975. The cubic root of 252503009 is about 632.0559431131.

The spelling of 252503009 in words is "two hundred fifty-two million, five hundred three thousand, nine".