825554971 has 2 divisors, whose sum is σ = 825554972. Its totient is φ = 825554970.

The previous prime is 825554929. The next prime is 825554993. The reversal of 825554971 is 179455528.

825554971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825554971 - 2¹³ = 825546779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (825554071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412777485 + 412777486.

It is an arithmetic number, because the mean of its divisors is an integer number (412777486).

Almost surely, 2^825554971 is an apocalyptic number.

825554971 is a deficient number, since it is larger than the sum of its proper divisors (1).

825554971 is an equidigital number, since it uses as much as digits as its factorization.

825554971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 46.

The square root of 825554971 is about 28732.4724136298. The cubic root of 825554971 is about 938.0989839971.

The spelling of 825554971 in words is "eight hundred twenty-five million, five hundred fifty-four thousand, nine hundred seventy-one".