252425451 has 4 divisors (see below), whose sum is σ = 336567272. Its totient is φ = 168283632.

The previous prime is 252425447. The next prime is 252425471. The reversal of 252425451 is 154524252.

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

It is not a de Polignac number, because 252425451 - 2² = 252425447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252425441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42070906 + ... + 42070911.

It is an arithmetic number, because the mean of its divisors is an integer number (84141818).

Almost surely, 2^252425451 is an apocalyptic number.

252425451 is a deficient number, since it is larger than the sum of its proper divisors (84141821).

252425451 is an equidigital number, since it uses as much as digits as its factorization.

252425451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84141820.

The product of its digits is 16000, while the sum is 30.

The square root of 252425451 is about 15887.9026620885. The cubic root of 252425451 is about 631.9912230728.

The spelling of 252425451 in words is "two hundred fifty-two million, four hundred twenty-five thousand, four hundred fifty-one".