252310403 has 4 divisors (see below), whose sum is σ = 252940008. Its totient is φ = 251680800.

The previous prime is 252310393. The next prime is 252310441. The reversal of 252310403 is 304013252.

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 252310403 - 2⁶ = 252310339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252310463) 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, 314201 + ... + 315002.

It is an arithmetic number, because the mean of its divisors is an integer number (63235002).

Almost surely, 2^252310403 is an apocalyptic number.

252310403 is a deficient number, since it is larger than the sum of its proper divisors (629605).

252310403 is an equidigital number, since it uses as much as digits as its factorization.

252310403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629604.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 252310403 is about 15884.2816331114. The cubic root of 252310403 is about 631.8951942255.

Adding to 252310403 its reverse (304013252), we get a palindrome (556323655).

It can be divided in two parts, 252310 and 403, that multiplied together give a triangular number (101680930 = T₁₄₂₆₀).

The spelling of 252310403 in words is "two hundred fifty-two million, three hundred ten thousand, four hundred three".