75555330 has 16 divisors (see below), whose sum is σ = 181332864. Its totient is φ = 20148080.

The previous prime is 75555329. The next prime is 75555331. The reversal of 75555330 is 3355557.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (75555329) and next prime (75555331).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 75555291 and 75555300.

It is not an unprimeable number, because it can be changed into a prime (75555331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259226 + ... + 1259285.

It is an arithmetic number, because the mean of its divisors is an integer number (11333304).

Almost surely, 2^75555330 is an apocalyptic number.

75555330 is an abundant number, since it is smaller than the sum of its proper divisors (105777534).

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

75555330 is a wasteful number, since it uses less digits than its factorization.

75555330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518521.

The product of its (nonzero) digits is 39375, while the sum is 33.

The square root of 75555330 is about 8692.2568991028. The cubic root of 75555330 is about 422.7546263425.

The spelling of 75555330 in words is "seventy-five million, five hundred fifty-five thousand, three hundred thirty".