253320915 has 8 divisors (see below), whose sum is σ = 405313488. Its totient is φ = 135104480.

The previous prime is 253320911. The next prime is 253320917. The reversal of 253320915 is 519023352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 253320915 - 2² = 253320911 is a prime.

It is a super-3 number, since 3×253320915³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (253320911) 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, 8444016 + ... + 8444045.

It is an arithmetic number, because the mean of its divisors is an integer number (50664186).

Almost surely, 2^253320915 is an apocalyptic number.

253320915 is a deficient number, since it is larger than the sum of its proper divisors (151992573).

253320915 is a wasteful number, since it uses less digits than its factorization.

253320915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16888069.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 253320915 is about 15916.0584002447. The cubic root of 253320915 is about 632.7376579862.

The spelling of 253320915 in words is "two hundred fifty-three million, three hundred twenty thousand, nine hundred fifteen".