252948431 has 4 divisors (see below), whose sum is σ = 256413552. Its totient is φ = 249483312.

The previous prime is 252948401. The next prime is 252948439. The reversal of 252948431 is 134849252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252948431 is a prime.

It is a super-2 number, since 2×252948431² = 127965817490723522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252948439) 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, 1732451 + ... + 1732596.

It is an arithmetic number, because the mean of its divisors is an integer number (64103388).

Almost surely, 2^252948431 is an apocalyptic number.

252948431 is a deficient number, since it is larger than the sum of its proper divisors (3465121).

252948431 is an equidigital number, since it uses as much as digits as its factorization.

252948431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3465120.

The product of its digits is 69120, while the sum is 38.

The square root of 252948431 is about 15904.3525803473. The cubic root of 252948431 is about 632.4273792693.

The spelling of 252948431 in words is "two hundred fifty-two million, nine hundred forty-eight thousand, four hundred thirty-one".