253135516 has 24 divisors (see below), whose sum is σ = 463365504. Its totient is φ = 120772080.

The previous prime is 253135489. The next prime is 253135549. The reversal of 253135516 is 615531352.

253135516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37651 + ... + 43861.

It is an arithmetic number, because the mean of its divisors is an integer number (19306896).

Almost surely, 2^253135516 is an apocalyptic number.

It is an amenable number.

253135516 is a deficient number, since it is larger than the sum of its proper divisors (210229988).

253135516 is a wasteful number, since it uses less digits than its factorization.

253135516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6681 (or 6679 counting only the distinct ones).

The product of its digits is 13500, while the sum is 31.

The square root of 253135516 is about 15910.2330592609. The cubic root of 253135516 is about 632.5832588924.

Adding to 253135516 its reverse (615531352), we get a palindrome (868666868).

The spelling of 253135516 in words is "two hundred fifty-three million, one hundred thirty-five thousand, five hundred sixteen".