30564500 has 24 divisors (see below), whose sum is σ = 66753960. Its totient is φ = 12225600.

The previous prime is 30564473. The next prime is 30564509. The reversal of 30564500 is 546503.

It can be written as a sum of positive squares in 4 ways, for example, as 6574096 + 23990404 = 2564^2 + 4898^2 .

It is a super-3 number, since 3×30564500³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30564509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30065 + ... + 31064.

It is an arithmetic number, because the mean of its divisors is an integer number (2781415).

Almost surely, 2^30564500 is an apocalyptic number.

It is an amenable number.

30564500 is an abundant number, since it is smaller than the sum of its proper divisors (36189460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30564500 is a wasteful number, since it uses less digits than its factorization.

30564500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61148 (or 61136 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30564500 is about 5528.5169801675. The cubic root of 30564500 is about 312.6600779861.

The spelling of 30564500 in words is "thirty million, five hundred sixty-four thousand, five hundred".