253031866 has 16 divisors (see below), whose sum is σ = 392233248. Its totient is φ = 122346000.

The previous prime is 253031861. The next prime is 253031881. The reversal of 253031866 is 668130352.

It is a super-2 number, since 2×253031866² = 128050250422883912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253031861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5880 + ... + 23251.

It is an arithmetic number, because the mean of its divisors is an integer number (24514578).

Almost surely, 2^253031866 is an apocalyptic number.

253031866 is a deficient number, since it is larger than the sum of its proper divisors (139201382).

253031866 is a wasteful number, since it uses less digits than its factorization.

253031866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29277.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 253031866 is about 15906.9753881748. The cubic root of 253031866 is about 632.4969069823.

The spelling of 253031866 in words is "two hundred fifty-three million, thirty-one thousand, eight hundred sixty-six".