825187963 has 2 divisors, whose sum is σ = 825187964. Its totient is φ = 825187962.

The previous prime is 825187901. The next prime is 825187967. The reversal of 825187963 is 369781528.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825187963 is a prime.

It is not a weakly prime, because it can be changed into another prime (825187967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412593981 + 412593982.

It is an arithmetic number, because the mean of its divisors is an integer number (412593982).

Almost surely, 2^825187963 is an apocalyptic number.

825187963 is a deficient number, since it is larger than the sum of its proper divisors (1).

825187963 is an equidigital number, since it uses as much as digits as its factorization.

825187963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 49.

The square root of 825187963 is about 28726.0850621869. The cubic root of 825187963 is about 937.9599499026.

The spelling of 825187963 in words is "eight hundred twenty-five million, one hundred eighty-seven thousand, nine hundred sixty-three".