30565925 has 12 divisors (see below), whose sum is σ = 40817700. Its totient is φ = 22571520.

The previous prime is 30565897. The next prime is 30565937. The reversal of 30565925 is 52956503.

It can be written as a sum of positive squares in 6 ways, for example, as 73441 + 30492484 = 271^2 + 5522^2 .

It is not a de Polignac number, because 30565925 - 2⁸ = 30565669 is a prime.

It is a super-2 number, since 2×30565925² = 1868551542211250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46700 + ... + 47349.

It is an arithmetic number, because the mean of its divisors is an integer number (3401475).

Almost surely, 2^30565925 is an apocalyptic number.

It is an amenable number.

30565925 is a deficient number, since it is larger than the sum of its proper divisors (10251775).

30565925 is a wasteful number, since it uses less digits than its factorization.

30565925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94072 (or 94067 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 30565925 is about 5528.6458559036. The cubic root of 30565925 is about 312.6649369313.

The spelling of 30565925 in words is "thirty million, five hundred sixty-five thousand, nine hundred twenty-five".