8556534 has 48 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 2401200.

The previous prime is 8556523. The next prime is 8556557. The reversal of 8556534 is 4356558.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6859 + ... + 8009.

It is an arithmetic number, because the mean of its divisors is an integer number (449280).

Almost surely, 2^8556534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8556534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10782720).

8556534 is an abundant number, since it is smaller than the sum of its proper divisors (13008906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8556534 is a wasteful number, since it uses less digits than its factorization.

8556534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225 (or 1222 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 8556534 is about 2925.1553804884. The cubic root of 8556534 is about 204.5342111530.

The spelling of 8556534 in words is "eight million, five hundred fifty-six thousand, five hundred thirty-four".