825011505 has 24 divisors (see below), whose sum is σ = 1435095168. Its totient is φ = 438444576.

The previous prime is 825011497. The next prime is 825011507. The reversal of 825011505 is 505110528.

825011505 is a `hidden beast` number, since 8 + 2 + 501 + 150 + 5 = 666.

It is not a de Polignac number, because 825011505 - 2³ = 825011497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825011507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19657 + ... + 45126.

It is an arithmetic number, because the mean of its divisors is an integer number (59795632).

Almost surely, 2^825011505 is an apocalyptic number.

It is an amenable number.

825011505 is a deficient number, since it is larger than the sum of its proper divisors (610083663).

825011505 is a wasteful number, since it uses less digits than its factorization.

825011505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65077 (or 65074 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 825011505 is about 28723.0135083351. The cubic root of 825011505 is about 937.8930874247.

The spelling of 825011505 in words is "eight hundred twenty-five million, eleven thousand, five hundred five".