30825085 has 4 divisors (see below), whose sum is σ = 36990108. Its totient is φ = 24660064.

The previous prime is 30825079. The next prime is 30825101. The reversal of 30825085 is 58052803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58052803 = 241 ⋅240883.

It can be written as a sum of positive squares in 2 ways, for example, as 20921476 + 9903609 = 4574^2 + 3147^2 .

It is a cyclic number.

It is not a de Polignac number, because 30825085 - 2¹⁹ = 30300797 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3082504 + ... + 3082513.

It is an arithmetic number, because the mean of its divisors is an integer number (9247527).

Almost surely, 2^30825085 is an apocalyptic number.

It is an amenable number.

30825085 is a deficient number, since it is larger than the sum of its proper divisors (6165023).

30825085 is an equidigital number, since it uses as much as digits as its factorization.

30825085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165022.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 30825085 is about 5552.0343118536. The cubic root of 30825085 is about 313.5461176005.

Adding to 30825085 its reverse (58052803), we get a palindrome (88877888).

The spelling of 30825085 in words is "thirty million, eight hundred twenty-five thousand, eighty-five".