30286925 has 6 divisors (see below), whose sum is σ = 37555818. Its totient is φ = 24229520.

The previous prime is 30286891. The next prime is 30286939. The reversal of 30286925 is 52968203.

It can be written as a sum of positive squares in 3 ways, for example, as 7828804 + 22458121 = 2798^2 + 4739^2 .

It is not a de Polignac number, because 30286925 - 2¹⁰ = 30285901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605714 + ... + 605763.

It is an arithmetic number, because the mean of its divisors is an integer number (6259303).

Almost surely, 2^30286925 is an apocalyptic number.

It is an amenable number.

30286925 is a deficient number, since it is larger than the sum of its proper divisors (7268893).

30286925 is a wasteful number, since it uses less digits than its factorization.

30286925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211487 (or 1211482 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 30286925 is about 5503.3557944222. The cubic root of 30286925 is about 311.7107121574.

The spelling of 30286925 in words is "thirty million, two hundred eighty-six thousand, nine hundred twenty-five".