253342289 has 4 divisors (see below), whose sum is σ = 262078260. Its totient is φ = 244606320.

The previous prime is 253342249. The next prime is 253342291. The reversal of 253342289 is 982243352.

253342289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63123025 + 190219264 = 7945^2 + 13792^2 .

It is a cyclic number.

It is not a de Polignac number, because 253342289 - 2¹² = 253338193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253342249) 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, 4367942 + ... + 4367999.

It is an arithmetic number, because the mean of its divisors is an integer number (65519565).

Almost surely, 2^253342289 is an apocalyptic number.

253342289 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

253342289 is a deficient number, since it is larger than the sum of its proper divisors (8735971).

253342289 is an equidigital number, since it uses as much as digits as its factorization.

253342289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8735970.

The product of its digits is 103680, while the sum is 38.

The square root of 253342289 is about 15916.7298462969. The cubic root of 253342289 is about 632.7554532722.

The spelling of 253342289 in words is "two hundred fifty-three million, three hundred forty-two thousand, two hundred eighty-nine".