252412403 has 4 divisors (see below), whose sum is σ = 252939840. Its totient is φ = 251884968.

The previous prime is 252412399. The next prime is 252412411. The reversal of 252412403 is 304214252.

It is a happy number.

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 252412403 - 2² = 252412399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252412453) 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, 263000 + ... + 263957.

It is an arithmetic number, because the mean of its divisors is an integer number (63234960).

Almost surely, 2^252412403 is an apocalyptic number.

252412403 is a deficient number, since it is larger than the sum of its proper divisors (527437).

252412403 is an equidigital number, since it uses as much as digits as its factorization.

252412403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527436.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 252412403 is about 15887.4920298957. The cubic root of 252412403 is about 631.9803335693.

Adding to 252412403 its reverse (304214252), we get a palindrome (556626655).

The spelling of 252412403 in words is "two hundred fifty-two million, four hundred twelve thousand, four hundred three".