252423520405 has 8 divisors (see below), whose sum is σ = 346180828032. Its totient is φ = 173090413968.

The previous prime is 252423520381. The next prime is 252423520411. The reversal of 252423520405 is 504025324252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 252423520405 - 2⁹ = 252423519893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606050257 + ... + 3606050326.

It is an arithmetic number, because the mean of its divisors is an integer number (43272603504).

Almost surely, 2^252423520405 is an apocalyptic number.

It is an amenable number.

252423520405 is a deficient number, since it is larger than the sum of its proper divisors (93757307627).

252423520405 is an equidigital number, since it uses as much as digits as its factorization.

252423520405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7212100595.

The product of its (nonzero) digits is 96000, while the sum is 34.

Adding to 252423520405 its reverse (504025324252), we get a palindrome (756448844657).

The spelling of 252423520405 in words is "two hundred fifty-two billion, four hundred twenty-three million, five hundred twenty thousand, four hundred five".