252442553 has 4 divisors (see below), whose sum is σ = 275391888. Its totient is φ = 229493220.

The previous prime is 252442543. The next prime is 252442573. The reversal of 252442553 is 355244252.

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 not a de Polignac number, because 252442553 - 2¹⁰ = 252441529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252442513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11474651 + ... + 11474672.

It is an arithmetic number, because the mean of its divisors is an integer number (68847972).

Almost surely, 2^252442553 is an apocalyptic number.

It is an amenable number.

252442553 is a deficient number, since it is larger than the sum of its proper divisors (22949335).

252442553 is a wasteful number, since it uses less digits than its factorization.

252442553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22949334.

The product of its digits is 48000, while the sum is 32.

The square root of 252442553 is about 15888.4408612047. The cubic root of 252442553 is about 632.0054953656.

The spelling of 252442553 in words is "two hundred fifty-two million, four hundred forty-two thousand, five hundred fifty-three".