825072231 has 8 divisors (see below), whose sum is σ = 1102394880. Its totient is φ = 548898872.

The previous prime is 825072229. The next prime is 825072247. The reversal of 825072231 is 132270528.

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 825072231 - 2¹ = 825072229 is a prime.

It is a super-2 number, since 2×825072231² = 1361488372734634722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825072211) 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, 285645 + ... + 288518.

It is an arithmetic number, because the mean of its divisors is an integer number (137799360).

Almost surely, 2^825072231 is an apocalyptic number.

825072231 is a deficient number, since it is larger than the sum of its proper divisors (277322649).

825072231 is a wasteful number, since it uses less digits than its factorization.

825072231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574645.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 825072231 is about 28724.0705854863. The cubic root of 825072231 is about 937.9160984567.

The spelling of 825072231 in words is "eight hundred twenty-five million, seventy-two thousand, two hundred thirty-one".