30255237 has 12 divisors (see below), whose sum is σ = 43867980. Its totient is φ = 20093568.

The previous prime is 30255229. The next prime is 30255299. The reversal of 30255237 is 73255203.

It can be written as a sum of positive squares in 2 ways, for example, as 7986276 + 22268961 = 2826^2 + 4719^2 .

It is not a de Polignac number, because 30255237 - 2³ = 30255229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30255237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30235237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3828 + ... + 8669.

It is an arithmetic number, because the mean of its divisors is an integer number (3655665).

Almost surely, 2^30255237 is an apocalyptic number.

It is an amenable number.

30255237 is a deficient number, since it is larger than the sum of its proper divisors (13612743).

30255237 is a wasteful number, since it uses less digits than its factorization.

30255237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12772 (or 12769 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 30255237 is about 5500.4760703052. The cubic root of 30255237 is about 311.6019640661.

The spelling of 30255237 in words is "thirty million, two hundred fifty-five thousand, two hundred thirty-seven".