2856238253 has 8 divisors (see below), whose sum is σ = 3119116896. Its totient is φ = 2593896400.

The previous prime is 2856238249. The next prime is 2856238267. The reversal of 2856238253 is 3528326582.

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 2856238253 - 2² = 2856238249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856238243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123026 + ... + 144387.

It is an arithmetic number, because the mean of its divisors is an integer number (389889612).

Almost surely, 2^2856238253 is an apocalyptic number.

It is an amenable number.

2856238253 is a deficient number, since it is larger than the sum of its proper divisors (262878643).

2856238253 is a wasteful number, since it uses less digits than its factorization.

2856238253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268395.

The product of its digits is 691200, while the sum is 44.

The square root of 2856238253 is about 53443.7859156703. The cubic root of 2856238253 is about 1418.8336406976.

The spelling of 2856238253 in words is "two billion, eight hundred fifty-six million, two hundred thirty-eight thousand, two hundred fifty-three".