825775567 has 2 divisors, whose sum is σ = 825775568. Its totient is φ = 825775566.

The previous prime is 825775541. The next prime is 825775589. The reversal of 825775567 is 765577528.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 825775567 - 2⁷ = 825775439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (825775267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412887783 + 412887784.

It is an arithmetic number, because the mean of its divisors is an integer number (412887784).

Almost surely, 2^825775567 is an apocalyptic number.

825775567 is a deficient number, since it is larger than the sum of its proper divisors (1).

825775567 is an equidigital number, since it uses as much as digits as its factorization.

825775567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4116000, while the sum is 52.

The square root of 825775567 is about 28736.3109497374. The cubic root of 825775567 is about 938.1825328264.

The spelling of 825775567 in words is "eight hundred twenty-five million, seven hundred seventy-five thousand, five hundred sixty-seven".