253774867 has 4 divisors (see below), whose sum is σ = 256626360. Its totient is φ = 250923376.

The previous prime is 253774841. The next prime is 253774883. The reversal of 253774867 is 768477352.

It is a happy number.

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 253774867 - 2¹⁹ = 253250579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253774867.

It is not an unprimeable number, because it can be changed into a prime (253774567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1425613 + ... + 1425790.

It is an arithmetic number, because the mean of its divisors is an integer number (64156590).

Almost surely, 2^253774867 is an apocalyptic number.

253774867 is a deficient number, since it is larger than the sum of its proper divisors (2851493).

253774867 is an equidigital number, since it uses as much as digits as its factorization.

253774867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851492.

The product of its digits is 1975680, while the sum is 49.

The square root of 253774867 is about 15930.3128343420. The cubic root of 253774867 is about 633.1153885051.

The spelling of 253774867 in words is "two hundred fifty-three million, seven hundred seventy-four thousand, eight hundred sixty-seven".