30825005 has 16 divisors (see below), whose sum is σ = 38734848. Its totient is φ = 23520000.

The previous prime is 30825001. The next prime is 30825007. The reversal of 30825005 is 50052803.

It is not a de Polignac number, because 30825005 - 2² = 30825001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30825001) 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, 9605 + ... + 12405.

It is an arithmetic number, because the mean of its divisors is an integer number (2420928).

Almost surely, 2^30825005 is an apocalyptic number.

It is an amenable number.

30825005 is a deficient number, since it is larger than the sum of its proper divisors (7909843).

30825005 is a wasteful number, since it uses less digits than its factorization.

30825005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908.

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

The square root of 30825005 is about 5552.0271072825. The cubic root of 30825005 is about 313.5458463526.

Adding to 30825005 its reverse (50052803), we get a palindrome (80877808).

The spelling of 30825005 in words is "thirty million, eight hundred twenty-five thousand, five".