30552500 has 90 divisors (see below), whose sum is σ = 74165322. Its totient is φ = 11000000.

The previous prime is 30552499. The next prime is 30552527. The reversal of 30552500 is 525503.

It can be written as a sum of positive squares in 5 ways, for example, as 4276624 + 26275876 = 2068^2 + 5126^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 302450 + ... + 302550.

Almost surely, 2^30552500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30552500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37082661).

30552500 is an abundant number, since it is smaller than the sum of its proper divisors (43612822).

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

30552500 is a wasteful number, since it uses less digits than its factorization.

30552500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 30552500 is about 5527.4315916165. The cubic root of 30552500 is about 312.6191545612.

It can be divided in two parts, 3055 and 2500, that added together give a palindrome (5555).

The spelling of 30552500 in words is "thirty million, five hundred fifty-two thousand, five hundred".