253132315 has 4 divisors (see below), whose sum is σ = 303758784. Its totient is φ = 202505848.

The previous prime is 253132303. The next prime is 253132333. The reversal of 253132315 is 513231352.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253132315 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 253132315.

It is an unprimeable number.

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, 25313227 + ... + 25313236.

It is an arithmetic number, because the mean of its divisors is an integer number (75939696).

Almost surely, 2^253132315 is an apocalyptic number.

253132315 is a deficient number, since it is larger than the sum of its proper divisors (50626469).

253132315 is an equidigital number, since it uses as much as digits as its factorization.

253132315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50626468.

The product of its digits is 2700, while the sum is 25.

The square root of 253132315 is about 15910.1324633078. The cubic root of 253132315 is about 632.5805924583.

Adding to 253132315 its reverse (513231352), we get a palindrome (766363667).

The spelling of 253132315 in words is "two hundred fifty-three million, one hundred thirty-two thousand, three hundred fifteen".