253078823 has 4 divisors (see below), whose sum is σ = 261242688. Its totient is φ = 244914960.

The previous prime is 253078807. The next prime is 253078873. The reversal of 253078823 is 328870352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 253078823 - 2⁴ = 253078807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253078873) 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, 4081886 + ... + 4081947.

It is an arithmetic number, because the mean of its divisors is an integer number (65310672).

Almost surely, 2^253078823 is an apocalyptic number.

253078823 is a deficient number, since it is larger than the sum of its proper divisors (8163865).

253078823 is an equidigital number, since it uses as much as digits as its factorization.

253078823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163864.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 253078823 is about 15908.4513074026. The cubic root of 253078823 is about 632.5360302763.

The spelling of 253078823 in words is "two hundred fifty-three million, seventy-eight thousand, eight hundred twenty-three".