855567552 has 112 divisors (see below), whose sum is σ = 2636105472. Its totient is φ = 239815680.

The previous prime is 855567533. The next prime is 855567571. The reversal of 855567552 is 255765558.

It is an interprime number because it is at equal distance from previous prime (855567533) and next prime (855567571).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65227 + ... + 77237.

It is an arithmetic number, because the mean of its divisors is an integer number (23536656).

Almost surely, 2^855567552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855567552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318052736).

855567552 is an abundant number, since it is smaller than the sum of its proper divisors (1780537920).

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

855567552 is a wasteful number, since it uses less digits than its factorization.

855567552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12086 (or 12076 counting only the distinct ones).

The product of its digits is 2100000, while the sum is 48.

The square root of 855567552 is about 29250.0863588469. The cubic root of 855567552 is about 949.3319595219.

The spelling of 855567552 in words is "eight hundred fifty-five million, five hundred sixty-seven thousand, five hundred fifty-two".