825799155 has 8 divisors (see below), whose sum is σ = 1321278672. Its totient is φ = 440426208.

The previous prime is 825799103. The next prime is 825799159. The reversal of 825799155 is 551997528.

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

It is not a de Polignac number, because 825799155 - 2⁸ = 825798899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 825799098 and 825799107.

It is not an unprimeable number, because it can be changed into a prime (825799159) 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, 27526624 + ... + 27526653.

It is an arithmetic number, because the mean of its divisors is an integer number (165159834).

Almost surely, 2^825799155 is an apocalyptic number.

825799155 is a deficient number, since it is larger than the sum of its proper divisors (495479517).

825799155 is a wasteful number, since it uses less digits than its factorization.

825799155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55053285.

The product of its digits is 1134000, while the sum is 51.

The square root of 825799155 is about 28736.7213683120. The cubic root of 825799155 is about 938.1914656970.

The spelling of 825799155 in words is "eight hundred twenty-five million, seven hundred ninety-nine thousand, one hundred fifty-five".