253918222 has 8 divisors (see below), whose sum is σ = 403281936. Its totient is φ = 119490912.

The previous prime is 253918219. The next prime is 253918237. The reversal of 253918222 is 222819352.

253918222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 7468183 = 253918222 / (2 + 5 + 3 + 9 + 1 + 8 + 2 + 2 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3734058 + ... + 3734125.

It is an arithmetic number, because the mean of its divisors is an integer number (50410242).

Almost surely, 2^253918222 is an apocalyptic number.

253918222 is a deficient number, since it is larger than the sum of its proper divisors (149363714).

253918222 is a wasteful number, since it uses less digits than its factorization.

253918222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7468202.

The product of its digits is 17280, while the sum is 34.

The square root of 253918222 is about 15934.8116399285. The cubic root of 253918222 is about 633.2345796779.

The spelling of 253918222 in words is "two hundred fifty-three million, nine hundred eighteen thousand, two hundred twenty-two".