253855678 has 4 divisors (see below), whose sum is σ = 380783520. Its totient is φ = 126927838.

The previous prime is 253855649. The next prime is 253855691. The reversal of 253855678 is 876558352.

It is a happy number.

253855678 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63463918 + ... + 63463921.

It is an arithmetic number, because the mean of its divisors is an integer number (95195880).

Almost surely, 2^253855678 is an apocalyptic number.

253855678 is a deficient number, since it is larger than the sum of its proper divisors (126927842).

253855678 is a wasteful number, since it uses less digits than its factorization.

253855678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126927841.

The product of its digits is 2016000, while the sum is 49.

The square root of 253855678 is about 15932.8490233229. The cubic root of 253855678 is about 633.1825835726.

The spelling of 253855678 in words is "two hundred fifty-three million, eight hundred fifty-five thousand, six hundred seventy-eight".