75060820 has 24 divisors (see below), whose sum is σ = 159402600. Its totient is φ = 29686272.

The previous prime is 75060781. The next prime is 75060829. The reversal of 75060820 is 2806057.

It can be written as a sum of positive squares in 4 ways, for example, as 16630084 + 58430736 = 4078^2 + 7644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75060829) by changing a digit.

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, 19305 + ... + 22864.

It is an arithmetic number, because the mean of its divisors is an integer number (6641775).

Almost surely, 2^75060820 is an apocalyptic number.

It is an amenable number.

75060820 is an abundant number, since it is smaller than the sum of its proper divisors (84341780).

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

75060820 is a wasteful number, since it uses less digits than its factorization.

75060820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42267 (or 42265 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 75060820 is about 8663.7647705833. The cubic root of 75060820 is about 421.8302964612.

Adding to 75060820 its reverse (2806057), we get a palindrome (77866877).

The spelling of 75060820 in words is "seventy-five million, sixty thousand, eight hundred twenty".