825822855 has 96 divisors (see below), whose sum is σ = 1780833600. Its totient is φ = 347811840.

The previous prime is 825822799. The next prime is 825822883. The reversal of 825822855 is 558228528.

It is not a de Polignac number, because 825822855 - 2⁷ = 825822727 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 825822855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105621 + ... + 113169.

It is an arithmetic number, because the mean of its divisors is an integer number (18550350).

Almost surely, 2^825822855 is an apocalyptic number.

825822855 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

825822855 is an abundant number, since it is smaller than the sum of its proper divisors (955010745).

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

825822855 is a wasteful number, since it uses less digits than its factorization.

825822855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7601 (or 7598 counting only the distinct ones).

The product of its digits is 512000, while the sum is 45.

The square root of 825822855 is about 28737.1337297233. The cubic root of 825822855 is about 938.2004408112.

It can be divided in two parts, 8258 and 22855, that added together give a palindrome (31113).

The spelling of 825822855 in words is "eight hundred twenty-five million, eight hundred twenty-two thousand, eight hundred fifty-five".