1253295305 has 8 divisors (see below), whose sum is σ = 1504333512. Its totient is φ = 1002383488.

The previous prime is 1253295299. The next prime is 1253295313. The reversal of 1253295305 is 5035923521.

It can be written as a sum of positive squares in 4 ways, for example, as 80712256 + 1172583049 = 8984^2 + 34243^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1253295305 - 2¹⁴ = 1253278921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8204 + ... + 50733.

It is an arithmetic number, because the mean of its divisors is an integer number (188041689).

Almost surely, 2^1253295305 is an apocalyptic number.

It is an amenable number.

1253295305 is a deficient number, since it is larger than the sum of its proper divisors (251038207).

1253295305 is an equidigital number, since it uses as much as digits as its factorization.

1253295305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63195.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 1253295305 is about 35401.9110359879. The cubic root of 1253295305 is about 1078.1631169944.

The spelling of 1253295305 in words is "one billion, two hundred fifty-three million, two hundred ninety-five thousand, three hundred five".