30755500 has 24 divisors (see below), whose sum is σ = 67171104. Its totient is φ = 12302000.

The previous prime is 30755489. The next prime is 30755561. The reversal of 30755500 is 555703.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30256 + ... + 31255.

It is an arithmetic number, because the mean of its divisors is an integer number (2798796).

Almost surely, 2^30755500 is an apocalyptic number.

It is an amenable number.

30755500 is an abundant number, since it is smaller than the sum of its proper divisors (36415604).

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

30755500 is a wasteful number, since it uses less digits than its factorization.

30755500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61530 (or 61518 counting only the distinct ones).

The product of its (nonzero) digits is 2625, while the sum is 25.

The square root of 30755500 is about 5545.7641493306. The cubic root of 30755500 is about 313.3100053051.

The spelling of 30755500 in words is "thirty million, seven hundred fifty-five thousand, five hundred".