253793783 has 4 divisors (see below), whose sum is σ = 259696008. Its totient is φ = 247891560.

The previous prime is 253793779. The next prime is 253793791. The reversal of 253793783 is 387397352.

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

It is not a de Polignac number, because 253793783 - 2² = 253793779 is a prime.

It is a super-2 number, since 2×253793783² = 128822568578902178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253792783) 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, 2951048 + ... + 2951133.

It is an arithmetic number, because the mean of its divisors is an integer number (64924002).

Almost surely, 2^253793783 is an apocalyptic number.

253793783 is a deficient number, since it is larger than the sum of its proper divisors (5902225).

253793783 is an equidigital number, since it uses as much as digits as its factorization.

253793783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902224.

The product of its digits is 952560, while the sum is 47.

The square root of 253793783 is about 15930.9065341556. The cubic root of 253793783 is about 633.1311186065.

The spelling of 253793783 in words is "two hundred fifty-three million, seven hundred ninety-three thousand, seven hundred eighty-three".