855297111 has 8 divisors (see below), whose sum is σ = 1145168640. Its totient is φ = 567811832.

The previous prime is 855297109. The next prime is 855297137. The reversal of 855297111 is 111792558.

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 855297111 - 2¹ = 855297109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 855297111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855297011) 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, 595725 + ... + 597158.

It is an arithmetic number, because the mean of its divisors is an integer number (143146080).

Almost surely, 2^855297111 is an apocalyptic number.

855297111 is a deficient number, since it is larger than the sum of its proper divisors (289871529).

855297111 is a wasteful number, since it uses less digits than its factorization.

855297111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193125.

The product of its digits is 25200, while the sum is 39.

The square root of 855297111 is about 29245.4630840409. The cubic root of 855297111 is about 949.2319224803.

The spelling of 855297111 in words is "eight hundred fifty-five million, two hundred ninety-seven thousand, one hundred eleven".