75522130 has 16 divisors (see below), whose sum is σ = 136053720. Its totient is φ = 30183552.

The previous prime is 75522127. The next prime is 75522137. The reversal of 75522130 is 3122557.

It can be written as a sum of positive squares in 4 ways, for example, as 25918281 + 49603849 = 5091^2 + 7043^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75522095 and 75522104.

It is not an unprimeable number, because it can be changed into a prime (75522137) 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, 13606 + ... + 18334.

Almost surely, 2^75522130 is an apocalyptic number.

75522130 is a deficient number, since it is larger than the sum of its proper divisors (60531590).

75522130 is a wasteful number, since it uses less digits than its factorization.

75522130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 75522130 is about 8690.3469435921. The cubic root of 75522130 is about 422.6926959670.

Adding to 75522130 its reverse (3122557), we get a palindrome (78644687).

The spelling of 75522130 in words is "seventy-five million, five hundred twenty-two thousand, one hundred thirty".