856541552 has 20 divisors (see below), whose sum is σ = 1666679040. Its totient is φ = 426430848.

The previous prime is 856541531. The next prime is 856541579. The reversal of 856541552 is 255145658.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111152 + ... + 118607.

It is an arithmetic number, because the mean of its divisors is an integer number (83333952).

Almost surely, 2^856541552 is an apocalyptic number.

It is an amenable number.

856541552 is a deficient number, since it is larger than the sum of its proper divisors (810137488).

856541552 is a wasteful number, since it uses less digits than its factorization.

856541552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230000 (or 229994 counting only the distinct ones).

The product of its digits is 240000, while the sum is 41.

The square root of 856541552 is about 29266.7311464741. The cubic root of 856541552 is about 949.6920708370.

The spelling of 856541552 in words is "eight hundred fifty-six million, five hundred forty-one thousand, five hundred fifty-two".