30285250 has 48 divisors (see below), whose sum is σ = 59524920. Its totient is φ = 11536800.

The previous prime is 30285217. The next prime is 30285253. The reversal of 30285250 is 5258203.

It can be written as a sum of positive squares in 4 ways, for example, as 16573041 + 13712209 = 4071^2 + 3703^2 .

It is a super-3 number, since 3×30285250³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (30285253) 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 23 ways as a sum of consecutive naturals, for example, 132136 + ... + 132364.

Almost surely, 2^30285250 is an apocalyptic number.

30285250 is a deficient number, since it is larger than the sum of its proper divisors (29239670).

30285250 is a wasteful number, since it uses less digits than its factorization.

30285250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 30285250 is about 5503.2036124425. The cubic root of 30285250 is about 311.7049657276.

The spelling of 30285250 in words is "thirty million, two hundred eighty-five thousand, two hundred fifty".