855498856 has 16 divisors (see below), whose sum is σ = 1604837700. Its totient is φ = 427542144.

The previous prime is 855498851. The next prime is 855498881. The reversal of 855498856 is 658894558.

It can be written as a sum of positive squares in 2 ways, for example, as 636754756 + 218744100 = 25234^2 + 14790^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 855498856.

It is not an unprimeable number, because it can be changed into a prime (855498851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7611 + ... + 42058.

Almost surely, 2^855498856 is an apocalyptic number.

It is an amenable number.

855498856 is a deficient number, since it is larger than the sum of its proper divisors (749338844).

855498856 is a wasteful number, since it uses less digits than its factorization.

855498856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51828 (or 51824 counting only the distinct ones).

The product of its digits is 13824000, while the sum is 58.

The square root of 855498856 is about 29248.9120481429. The cubic root of 855498856 is about 949.3065506365.

The spelling of 855498856 in words is "eight hundred fifty-five million, four hundred ninety-eight thousand, eight hundred fifty-six".