30085825 has 24 divisors (see below), whose sum is σ = 46514880. Its totient is φ = 18753600.

The previous prime is 30085823. The next prime is 30085831. The reversal of 30085825 is 52858003.

It is not a de Polignac number, because 30085825 - 2¹ = 30085823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30085823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5890 + ... + 9739.

It is an arithmetic number, because the mean of its divisors is an integer number (1938120).

Almost surely, 2^30085825 is an apocalyptic number.

30085825 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30085825 is a deficient number, since it is larger than the sum of its proper divisors (16429055).

30085825 is a wasteful number, since it uses less digits than its factorization.

30085825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15657 (or 15652 counting only the distinct ones).

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

The square root of 30085825 is about 5485.0546943490. The cubic root of 30085825 is about 311.0192776242.

The spelling of 30085825 in words is "thirty million, eighty-five thousand, eight hundred twenty-five".