253664122 has 8 divisors (see below), whose sum is σ = 382622400. Its totient is φ = 126123324.

The previous prime is 253664111. The next prime is 253664129. The reversal of 253664122 is 221466352.

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

It is not an unprimeable number, because it can be changed into a prime (253664129) 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, 353922 + ... + 354637.

It is an arithmetic number, because the mean of its divisors is an integer number (47827800).

Almost surely, 2^253664122 is an apocalyptic number.

253664122 is a deficient number, since it is larger than the sum of its proper divisors (128958278).

253664122 is a wasteful number, since it uses less digits than its factorization.

253664122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708740.

The product of its digits is 17280, while the sum is 31.

The square root of 253664122 is about 15926.8365346041. The cubic root of 253664122 is about 633.0232798761.

The spelling of 253664122 in words is "two hundred fifty-three million, six hundred sixty-four thousand, one hundred twenty-two".