252553143 has 4 divisors (see below), whose sum is σ = 336737528. Its totient is φ = 168368760.

The previous prime is 252553123. The next prime is 252553151. The reversal of 252553143 is 341355252.

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

It is not a de Polignac number, because 252553143 - 2²⁴ = 235775927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252553143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252553123) 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, 42092188 + ... + 42092193.

It is an arithmetic number, because the mean of its divisors is an integer number (84184382).

Almost surely, 2^252553143 is an apocalyptic number.

252553143 is a deficient number, since it is larger than the sum of its proper divisors (84184385).

252553143 is an equidigital number, since it uses as much as digits as its factorization.

252553143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84184384.

The product of its digits is 18000, while the sum is 30.

The square root of 252553143 is about 15891.9206831648. The cubic root of 252553143 is about 632.0977715199.

The spelling of 252553143 in words is "two hundred fifty-two million, five hundred fifty-three thousand, one hundred forty-three".