825532499 has 16 divisors (see below), whose sum is σ = 931222656. Its totient is φ = 725294400.

The previous prime is 825532471. The next prime is 825532607. The reversal of 825532499 is 994235528.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-825532499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (825532429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39704 + ... + 56810.

It is an arithmetic number, because the mean of its divisors is an integer number (58201416).

Almost surely, 2^825532499 is an apocalyptic number.

825532499 is a deficient number, since it is larger than the sum of its proper divisors (105690157).

825532499 is a wasteful number, since it uses less digits than its factorization.

825532499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17266.

The product of its digits is 777600, while the sum is 47.

The square root of 825532499 is about 28732.0813551681. The cubic root of 825532499 is about 938.0904720860.

The spelling of 825532499 in words is "eight hundred twenty-five million, five hundred thirty-two thousand, four hundred ninety-nine".