253473823 has 4 divisors (see below), whose sum is σ = 264494448. Its totient is φ = 242453200.

The previous prime is 253473821. The next prime is 253473827. The reversal of 253473823 is 328374352.

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 253473823 - 2¹ = 253473821 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 (253473821) 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 3 ways as a sum of consecutive naturals, for example, 5510278 + ... + 5510323.

It is an arithmetic number, because the mean of its divisors is an integer number (66123612).

Almost surely, 2^253473823 is an apocalyptic number.

253473823 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

253473823 is a deficient number, since it is larger than the sum of its proper divisors (11020625).

253473823 is a wasteful number, since it uses less digits than its factorization.

253473823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020624.

The product of its digits is 120960, while the sum is 37.

The square root of 253473823 is about 15920.8612518293. The cubic root of 253473823 is about 632.8649421068.

The spelling of 253473823 in words is "two hundred fifty-three million, four hundred seventy-three thousand, eight hundred twenty-three".