253415616 has 56 divisors (see below), whose sum is σ = 705794880. Its totient is φ = 80024832.

The previous prime is 253415581. The next prime is 253415671. The reversal of 253415616 is 616514352.

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, 31086 + ... + 38381.

It is an arithmetic number, because the mean of its divisors is an integer number (12603480).

Almost surely, 2^253415616 is an apocalyptic number.

It is an amenable number.

253415616 is an abundant number, since it is smaller than the sum of its proper divisors (452379264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253415616 is a wasteful number, since it uses less digits than its factorization.

253415616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69501 (or 69491 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 253415616 is about 15919.0331364691. The cubic root of 253415616 is about 632.8164953029.

Adding to 253415616 its reverse (616514352), we get a palindrome (869929968).

The spelling of 253415616 in words is "two hundred fifty-three million, four hundred fifteen thousand, six hundred sixteen".