253431611 has 8 divisors (see below), whose sum is σ = 262158960. Its totient is φ = 244803168.

The previous prime is 253431583. The next prime is 253431613. The reversal of 253431611 is 116134352.

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 253431611 - 2⁶ = 253431547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253431613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19496 + ... + 29781.

It is an arithmetic number, because the mean of its divisors is an integer number (32769870).

Almost surely, 2^253431611 is an apocalyptic number.

253431611 is a deficient number, since it is larger than the sum of its proper divisors (8727349).

253431611 is a wasteful number, since it uses less digits than its factorization.

253431611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49453.

The product of its digits is 2160, while the sum is 26.

The square root of 253431611 is about 15919.5355145808. The cubic root of 253431611 is about 632.8298089877.

Adding to 253431611 its reverse (116134352), we get a palindrome (369565963).

The spelling of 253431611 in words is "two hundred fifty-three million, four hundred thirty-one thousand, six hundred eleven".