855897245 has 16 divisors (see below), whose sum is σ = 1187948160. Its totient is φ = 579827904.

The previous prime is 855897239. The next prime is 855897253. The reversal of 855897245 is 542798558.

It is a cyclic number.

It is not a de Polignac number, because 855897245 - 2²⁰ = 854848669 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144410 + ... + 150219.

It is an arithmetic number, because the mean of its divisors is an integer number (74246760).

Almost surely, 2^855897245 is an apocalyptic number.

It is an amenable number.

855897245 is a deficient number, since it is larger than the sum of its proper divisors (332050915).

855897245 is a wasteful number, since it uses less digits than its factorization.

855897245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294724.

The product of its digits is 4032000, while the sum is 53.

The square root of 855897245 is about 29255.7215771548. The cubic root of 855897245 is about 949.4538855683.

The spelling of 855897245 in words is "eight hundred fifty-five million, eight hundred ninety-seven thousand, two hundred forty-five".