825672571 has 2 divisors, whose sum is σ = 825672572. Its totient is φ = 825672570.

The previous prime is 825672539. The next prime is 825672599. The reversal of 825672571 is 175276528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825672571 - 2⁵ = 825672539 is a prime.

It is not a weakly prime, because it can be changed into another prime (825672511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412836285 + 412836286.

It is an arithmetic number, because the mean of its divisors is an integer number (412836286).

Almost surely, 2^825672571 is an apocalyptic number.

825672571 is a deficient number, since it is larger than the sum of its proper divisors (1).

825672571 is an equidigital number, since it uses as much as digits as its factorization.

825672571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 235200, while the sum is 43.

The square root of 825672571 is about 28734.5188057848. The cubic root of 825672571 is about 938.1435258332.

The spelling of 825672571 in words is "eight hundred twenty-five million, six hundred seventy-two thousand, five hundred seventy-one".