253115566 has 8 divisors (see below), whose sum is σ = 414189144. Its totient is φ = 115052520.

The previous prime is 253115563. The next prime is 253115617. The reversal of 253115566 is 665511352.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253115561) 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, 5752605 + ... + 5752648.

It is an arithmetic number, because the mean of its divisors is an integer number (51773643).

Almost surely, 2^253115566 is an apocalyptic number.

253115566 is a deficient number, since it is larger than the sum of its proper divisors (161073578).

253115566 is a wasteful number, since it uses less digits than its factorization.

253115566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11505266.

The product of its digits is 27000, while the sum is 34.

The square root of 253115566 is about 15909.6060919182. The cubic root of 253115566 is about 632.5666401688.

The spelling of 253115566 in words is "two hundred fifty-three million, one hundred fifteen thousand, five hundred sixty-six".