253920089 has 4 divisors (see below), whose sum is σ = 253977780. Its totient is φ = 253862400.

The previous prime is 253920077. The next prime is 253920091. The reversal of 253920089 is 980029352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161086864 + 92833225 = 12692^2 + 9635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253920089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253920049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21644 + ... + 31245.

It is an arithmetic number, because the mean of its divisors is an integer number (63494445).

Almost surely, 2^253920089 is an apocalyptic number.

It is an amenable number.

253920089 is a deficient number, since it is larger than the sum of its proper divisors (57691).

253920089 is an equidigital number, since it uses as much as digits as its factorization.

253920089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57690.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 253920089 is about 15934.8702222516. The cubic root of 253920089 is about 633.2361316816.

The spelling of 253920089 in words is "two hundred fifty-three million, nine hundred twenty thousand, eighty-nine".