252434447 has 4 divisors (see below), whose sum is σ = 252467136. Its totient is φ = 252401760.

The previous prime is 252434363. The next prime is 252434521. The reversal of 252434447 is 744434252.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 252434447 - 2⁸ = 252434191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252434747) 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, 2423 + ... + 22599.

It is an arithmetic number, because the mean of its divisors is an integer number (63116784).

Almost surely, 2^252434447 is an apocalyptic number.

252434447 is a deficient number, since it is larger than the sum of its proper divisors (32689).

252434447 is a wasteful number, since it uses less digits than its factorization.

252434447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32688.

The product of its digits is 107520, while the sum is 35.

The square root of 252434447 is about 15888.1857680479. The cubic root of 252434447 is about 631.9987306696.

Adding to 252434447 its reverse (744434252), we get a palindrome (996868699).

The spelling of 252434447 in words is "two hundred fifty-two million, four hundred thirty-four thousand, four hundred forty-seven".