825542227 has 2 divisors, whose sum is σ = 825542228. Its totient is φ = 825542226.

The previous prime is 825542203. The next prime is 825542231. The reversal of 825542227 is 722245528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825542227 - 2¹⁵ = 825509459 is a prime.

It is not a weakly prime, because it can be changed into another prime (825542297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412771113 + 412771114.

It is an arithmetic number, because the mean of its divisors is an integer number (412771114).

Almost surely, 2^825542227 is an apocalyptic number.

825542227 is a deficient number, since it is larger than the sum of its proper divisors (1).

825542227 is an equidigital number, since it uses as much as digits as its factorization.

825542227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 89600, while the sum is 37.

The square root of 825542227 is about 28732.2506427881. The cubic root of 825542227 is about 938.0941568625.

The spelling of 825542227 in words is "eight hundred twenty-five million, five hundred forty-two thousand, two hundred twenty-seven".