253345516 has 12 divisors (see below), whose sum is σ = 457656640. Its totient is φ = 122586480.

The previous prime is 253345511. The next prime is 253345523. The reversal of 253345516 is 615543352.

It is not an unprimeable number, because it can be changed into a prime (253345511) 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, 1021431 + ... + 1021678.

Almost surely, 2^253345516 is an apocalyptic number.

It is an amenable number.

253345516 is a deficient number, since it is larger than the sum of its proper divisors (204311124).

253345516 is a wasteful number, since it uses less digits than its factorization.

253345516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043144 (or 2043142 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 253345516 is about 15916.8312172995. The cubic root of 253345516 is about 632.7581398788.

Adding to 253345516 its reverse (615543352), we get a palindrome (868888868).

The spelling of 253345516 in words is "two hundred fifty-three million, three hundred forty-five thousand, five hundred sixteen".