855450253 has 8 divisors (see below), whose sum is σ = 981267200. Its totient is φ = 730535760.

The previous prime is 855450221. The next prime is 855450257. The reversal of 855450253 is 352054558.

It is a happy number.

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 855450253 - 2⁵ = 855450221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855450257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223578 + ... + 227371.

It is an arithmetic number, because the mean of its divisors is an integer number (122658400).

Almost surely, 2^855450253 is an apocalyptic number.

It is an amenable number.

855450253 is a deficient number, since it is larger than the sum of its proper divisors (125816947).

855450253 is a wasteful number, since it uses less digits than its factorization.

855450253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451227.

The product of its (nonzero) digits is 120000, while the sum is 37.

The square root of 855450253 is about 29248.0811849256. The cubic root of 855450253 is about 949.2885728138.

The spelling of 855450253 in words is "eight hundred fifty-five million, four hundred fifty thousand, two hundred fifty-three".