253283278 has 8 divisors (see below), whose sum is σ = 390193272. Its totient is φ = 123218856.

The previous prime is 253283273. The next prime is 253283279. The reversal of 253283278 is 872382352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 253283278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253283273) 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, 1711300 + ... + 1711447.

It is an arithmetic number, because the mean of its divisors is an integer number (48774159).

Almost surely, 2^253283278 is an apocalyptic number.

253283278 is a deficient number, since it is larger than the sum of its proper divisors (136909994).

253283278 is a wasteful number, since it uses less digits than its factorization.

253283278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422786.

The product of its digits is 161280, while the sum is 40.

The square root of 253283278 is about 15914.8759970036. The cubic root of 253283278 is about 632.7063202307.

The spelling of 253283278 in words is "two hundred fifty-three million, two hundred eighty-three thousand, two hundred seventy-eight".