825125499 has 24 divisors (see below), whose sum is σ = 1310962224. Its totient is φ = 500068800.

The previous prime is 825125479. The next prime is 825125513. The reversal of 825125499 is 994521528.

It is a happy number.

825125499 is a `hidden beast` number, since 82 + 512 + 54 + 9 + 9 = 666.

It is not a de Polignac number, because 825125499 - 2¹⁷ = 824994427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825125449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22462 + ... + 46419.

It is an arithmetic number, because the mean of its divisors is an integer number (54623426).

Almost surely, 2^825125499 is an apocalyptic number.

825125499 is a deficient number, since it is larger than the sum of its proper divisors (485836725).

825125499 is a wasteful number, since it uses less digits than its factorization.

825125499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68920 (or 68895 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 825125499 is about 28724.9978067884. The cubic root of 825125499 is about 937.9362824833.

The spelling of 825125499 in words is "eight hundred twenty-five million, one hundred twenty-five thousand, four hundred ninety-nine".