252405203 has 4 divisors (see below), whose sum is σ = 252494880. Its totient is φ = 252315528.

The previous prime is 252405199. The next prime is 252405211. The reversal of 252405203 is 302504252.

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

It is a cyclic number.

It is not a de Polignac number, because 252405203 - 2² = 252405199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252401203) 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, 40475 + ... + 46292.

It is an arithmetic number, because the mean of its divisors is an integer number (63123720).

Almost surely, 2^252405203 is an apocalyptic number.

252405203 is a deficient number, since it is larger than the sum of its proper divisors (89677).

252405203 is an equidigital number, since it uses as much as digits as its factorization.

252405203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89676.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 252405203 is about 15887.2654349325. The cubic root of 252405203 is about 631.9743244857.

Adding to 252405203 its reverse (302504252), we get a palindrome (554909455).

The spelling of 252405203 in words is "two hundred fifty-two million, four hundred five thousand, two hundred three".