854957566 has 4 divisors (see below), whose sum is σ = 1282436352. Its totient is φ = 427478782.

The previous prime is 854957561. The next prime is 854957567. The reversal of 854957566 is 665759458.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854957561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213739390 + ... + 213739393.

It is an arithmetic number, because the mean of its divisors is an integer number (320609088).

Almost surely, 2^854957566 is an apocalyptic number.

854957566 is a deficient number, since it is larger than the sum of its proper divisors (427478786).

854957566 is a wasteful number, since it uses less digits than its factorization.

854957566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427478785.

The product of its digits is 9072000, while the sum is 55.

The square root of 854957566 is about 29239.6574193338. The cubic root of 854957566 is about 949.1062937721.

It can be divided in two parts, 854 and 957566, that added together give a triangular number (958420 = T₁₃₈₄).

The spelling of 854957566 in words is "eight hundred fifty-four million, nine hundred fifty-seven thousand, five hundred sixty-six".