825134417 has 2 divisors, whose sum is σ = 825134418. Its totient is φ = 825134416.

The previous prime is 825134377. The next prime is 825134437. The reversal of 825134417 is 714431528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 801795856 + 23338561 = 28316^2 + 4831^2 .

It is a cyclic number.

It is not a de Polignac number, because 825134417 - 2¹² = 825130321 is a prime.

It is a super-2 number, since 2×825134417² = 1361693612235859778, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (825134437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412567208 + 412567209.

It is an arithmetic number, because the mean of its divisors is an integer number (412567209).

Almost surely, 2^825134417 is an apocalyptic number.

It is an amenable number.

825134417 is a deficient number, since it is larger than the sum of its proper divisors (1).

825134417 is an equidigital number, since it uses as much as digits as its factorization.

825134417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 825134417 is about 28725.1530370162. The cubic root of 825134417 is about 937.9396615594.

The spelling of 825134417 in words is "eight hundred twenty-five million, one hundred thirty-four thousand, four hundred seventeen".