30249275 has 12 divisors (see below), whose sum is σ = 42867792. Its totient is φ = 20742240.

The previous prime is 30249257. The next prime is 30249283. The reversal of 30249275 is 57294203.

It is a happy number.

It is not a de Polignac number, because 30249275 - 2⁸ = 30249019 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 11 ways as a sum of consecutive naturals, for example, 86252 + ... + 86601.

It is an arithmetic number, because the mean of its divisors is an integer number (3572316).

Almost surely, 2^30249275 is an apocalyptic number.

30249275 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30249275 is a deficient number, since it is larger than the sum of its proper divisors (12618517).

30249275 is a wasteful number, since it uses less digits than its factorization.

30249275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172870 (or 172865 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 30249275 is about 5499.9340905142. The cubic root of 30249275 is about 311.5814949602.

The spelling of 30249275 in words is "thirty million, two hundred forty-nine thousand, two hundred seventy-five".