855807552 has 224 divisors, whose sum is σ = 2675900160. Its totient is φ = 267632640.

The previous prime is 855807503. The next prime is 855807559. The reversal of 855807552 is 255708558.

It is a junction number, because it is equal to n+sod(n) for n = 855807498 and 855807507.

It is not an unprimeable number, because it can be changed into a prime (855807559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2424208 + ... + 2424560.

Almost surely, 2^855807552 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 855807552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337950080).

855807552 is an abundant number, since it is smaller than the sum of its proper divisors (1820092608).

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

855807552 is a wasteful number, since it uses less digits than its factorization.

855807552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 560000, while the sum is 45.

The square root of 855807552 is about 29254.1886231698. The cubic root of 855807552 is about 949.4207186810.

The spelling of 855807552 in words is "eight hundred fifty-five million, eight hundred seven thousand, five hundred fifty-two".