856454554 has 4 divisors (see below), whose sum is σ = 1284681834. Its totient is φ = 428227276.

The previous prime is 856454549. The next prime is 856454569. The reversal of 856454554 is 455454658.

856454554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455454658 = 2 ⋅227727329.

It can be written as a sum of positive squares in only one way, i.e., 827885529 + 28569025 = 28773^2 + 5345^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214113637 + ... + 214113640.

Almost surely, 2^856454554 is an apocalyptic number.

856454554 is a deficient number, since it is larger than the sum of its proper divisors (428227280).

856454554 is a wasteful number, since it uses less digits than its factorization.

856454554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428227279.

The product of its digits is 1920000, while the sum is 46.

The square root of 856454554 is about 29265.2448136010. The cubic root of 856454554 is about 949.6599166825.

The spelling of 856454554 in words is "eight hundred fifty-six million, four hundred fifty-four thousand, five hundred fifty-four".