30555425 has 12 divisors (see below), whose sum is σ = 38239740. Its totient is φ = 24217920.

The previous prime is 30555419. The next prime is 30555457. The reversal of 30555425 is 52455503.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3265249 + 27290176 = 1807^2 + 5224^2 .

It is not a de Polignac number, because 30555425 - 2⁶ = 30555361 is a prime.

It is a Curzon 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, 2882 + ... + 8331.

It is an arithmetic number, because the mean of its divisors is an integer number (3186645).

Almost surely, 2^30555425 is an apocalyptic number.

It is an amenable number.

30555425 is a deficient number, since it is larger than the sum of its proper divisors (7684315).

30555425 is a wasteful number, since it uses less digits than its factorization.

30555425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 11327 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 30555425 is about 5527.6961747187. The cubic root of 30555425 is about 312.6291306335.

The spelling of 30555425 in words is "thirty million, five hundred fifty-five thousand, four hundred twenty-five".