30055625 has 20 divisors (see below), whose sum is σ = 39549840. Its totient is φ = 22770000.

The previous prime is 30055621. The next prime is 30055651. The reversal of 30055625 is 52655003.

It is not a de Polignac number, because 30055625 - 2² = 30055621 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30055594 and 30055603.

It is not an unprimeable number, because it can be changed into a prime (30055621) 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 19 ways as a sum of consecutive naturals, for example, 10610 + ... + 13140.

It is an arithmetic number, because the mean of its divisors is an integer number (1977492).

Almost surely, 2^30055625 is an apocalyptic number.

It is an amenable number.

30055625 is a deficient number, since it is larger than the sum of its proper divisors (9494215).

30055625 is an equidigital number, since it uses as much as digits as its factorization.

30055625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 30055625 is about 5482.3010679823. The cubic root of 30055625 is about 310.9151762548.

The spelling of 30055625 in words is "thirty million, fifty-five thousand, six hundred twenty-five".