252432971 has 4 divisors (see below), whose sum is σ = 288494832. Its totient is φ = 216371112.

The previous prime is 252432953. The next prime is 252432989. The reversal of 252432971 is 179234252.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (252432953) and next prime (252432989).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252432971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252402971) 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, 18030920 + ... + 18030933.

It is an arithmetic number, because the mean of its divisors is an integer number (72123708).

Almost surely, 2^252432971 is an apocalyptic number.

252432971 is a deficient number, since it is larger than the sum of its proper divisors (36061861).

252432971 is an equidigital number, since it uses as much as digits as its factorization.

252432971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36061860.

The product of its digits is 30240, while the sum is 35.

The square root of 252432971 is about 15888.1393183721. The cubic root of 252432971 is about 631.9974988885.

The spelling of 252432971 in words is "two hundred fifty-two million, four hundred thirty-two thousand, nine hundred seventy-one".