30564250 has 32 divisors (see below), whose sum is σ = 57620160. Its totient is φ = 12139600.

The previous prime is 30564223. The next prime is 30564251. The reversal of 30564250 is 5246503.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30564251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44409 + ... + 45091.

It is an arithmetic number, because the mean of its divisors is an integer number (1800630).

Almost surely, 2^30564250 is an apocalyptic number.

30564250 is a deficient number, since it is larger than the sum of its proper divisors (27055910).

30564250 is a wasteful number, since it uses less digits than its factorization.

30564250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 30564250 is about 5528.4943700794. The cubic root of 30564250 is about 312.6592255240.

The spelling of 30564250 in words is "thirty million, five hundred sixty-four thousand, two hundred fifty".