30825500 has 24 divisors (see below), whose sum is σ = 67323984. Its totient is φ = 12330000.

The previous prime is 30825469. The next prime is 30825511. The reversal of 30825500 is 552803.

It is a super-2 number, since 2×30825500² = 1900422900500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30326 + ... + 31325.

It is an arithmetic number, because the mean of its divisors is an integer number (2805166).

Almost surely, 2^30825500 is an apocalyptic number.

It is an amenable number.

30825500 is an abundant number, since it is smaller than the sum of its proper divisors (36498484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30825500 is a wasteful number, since it uses less digits than its factorization.

30825500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61670 (or 61658 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 30825500 is about 5552.0716854162. The cubic root of 30825500 is about 313.5475246910.

The spelling of 30825500 in words is "thirty million, eight hundred twenty-five thousand, five hundred".