855572849 has 8 divisors (see below), whose sum is σ = 880061952. Its totient is φ = 831292560.

The previous prime is 855572779. The next prime is 855572857. The reversal of 855572849 is 948275558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 855572849 - 2¹⁶ = 855507313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 855572849.

It is not an unprimeable number, because it can be changed into a prime (855578849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43874 + ... + 60299.

It is an arithmetic number, because the mean of its divisors is an integer number (110007744).

Almost surely, 2^855572849 is an apocalyptic number.

It is an amenable number.

855572849 is a deficient number, since it is larger than the sum of its proper divisors (24489103).

855572849 is a wasteful number, since it uses less digits than its factorization.

855572849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104407.

The product of its digits is 4032000, while the sum is 53.

The square root of 855572849 is about 29250.1769054479. The cubic root of 855572849 is about 949.3339186896. Note that the first 3 decimals are identical.

The spelling of 855572849 in words is "eight hundred fifty-five million, five hundred seventy-two thousand, eight hundred forty-nine".