252404463 has 4 divisors (see below), whose sum is σ = 336539288. Its totient is φ = 168269640.

The previous prime is 252404443. The next prime is 252404483. The reversal of 252404463 is 364404252.

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 (252404443) and next prime (252404483).

It is not a de Polignac number, because 252404463 - 2²⁰ = 251355887 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 252404463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252404443) 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, 42067408 + ... + 42067413.

It is an arithmetic number, because the mean of its divisors is an integer number (84134822).

Almost surely, 2^252404463 is an apocalyptic number.

252404463 is a deficient number, since it is larger than the sum of its proper divisors (84134825).

252404463 is an equidigital number, since it uses as much as digits as its factorization.

252404463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84134824.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 252404463 is about 15887.2421458225. The cubic root of 252404463 is about 631.9737068790.

The spelling of 252404463 in words is "two hundred fifty-two million, four hundred four thousand, four hundred sixty-three".