30025081 has 8 divisors (see below), whose sum is σ = 31062528. Its totient is φ = 28992000.

The previous prime is 30025067. The next prime is 30025103. The reversal of 30025081 is 18052003.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30025081 - 2⁵ = 30025049 is a prime.

It is a super-2 number, since 2×30025081² = 1803010978113122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30025181) by changing a digit.

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, 19116 + ... + 20626.

It is an arithmetic number, because the mean of its divisors is an integer number (3882816).

Almost surely, 2^30025081 is an apocalyptic number.

30025081 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30025081 is a deficient number, since it is larger than the sum of its proper divisors (1037447).

30025081 is a wasteful number, since it uses less digits than its factorization.

30025081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 30025081 is about 5479.5146682895. The cubic root of 30025081 is about 310.8098181404.

Adding to 30025081 its reverse (18052003), we get a palindrome (48077084).

The spelling of 30025081 in words is "thirty million, twenty-five thousand, eighty-one".