30289025 has 36 divisors (see below), whose sum is σ = 41662512. Its totient is φ = 21827520.

The previous prime is 30288989. The next prime is 30289027. The reversal of 30289025 is 52098203.

It is not a de Polignac number, because 30289025 - 2⁶ = 30288961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30289027) 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 35 ways as a sum of consecutive naturals, for example, 283022 + ... + 283128.

It is an arithmetic number, because the mean of its divisors is an integer number (1157292).

Almost surely, 2^30289025 is an apocalyptic number.

It is an amenable number.

30289025 is a deficient number, since it is larger than the sum of its proper divisors (11373487).

30289025 is a wasteful number, since it uses less digits than its factorization.

30289025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 30289025 is about 5503.5465837949. The cubic root of 30289025 is about 311.7179163373.

The spelling of 30289025 in words is "thirty million, two hundred eighty-nine thousand, twenty-five".