253280815 has 8 divisors (see below), whose sum is σ = 304028208. Its totient is φ = 202563840.

The previous prime is 253280759. The next prime is 253280827. The reversal of 253280815 is 518082352.

253280815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 253280815 - 2²¹ = 251183663 is a prime.

It is a Duffinian number.

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, 19519 + ... + 29791.

It is an arithmetic number, because the mean of its divisors is an integer number (38003526).

Almost surely, 2^253280815 is an apocalyptic number.

253280815 is a deficient number, since it is larger than the sum of its proper divisors (50747393).

253280815 is a wasteful number, since it uses less digits than its factorization.

253280815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15209.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 253280815 is about 15914.7986163822. The cubic root of 253280815 is about 632.7042693508.

The spelling of 253280815 in words is "two hundred fifty-three million, two hundred eighty thousand, eight hundred fifteen".