30250775 has 12 divisors (see below), whose sum is σ = 38148600. Its totient is φ = 23789280.

The previous prime is 30250747. The next prime is 30250777. The reversal of 30250775 is 57705203.

It is a de Polignac number, because none of the positive numbers 2^k-30250775 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30250777) 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, 8780 + ... + 11729.

It is an arithmetic number, because the mean of its divisors is an integer number (3179050).

Almost surely, 2^30250775 is an apocalyptic number.

30250775 is a deficient number, since it is larger than the sum of its proper divisors (7897825).

30250775 is a wasteful number, since it uses less digits than its factorization.

30250775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20578 (or 20573 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 29.

The square root of 30250775 is about 5500.0704540942. The cubic root of 30250775 is about 311.5866451058.

Adding to 30250775 its reverse (57705203), we get a palindrome (87955978).

The spelling of 30250775 in words is "thirty million, two hundred fifty thousand, seven hundred seventy-five".