75012522 has 32 divisors (see below), whose sum is σ = 168594048. Its totient is φ = 22076736.

The previous prime is 75012503. The next prime is 75012523. The reversal of 75012522 is 22521057.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 75012492 and 75012501.

It is not an unprimeable number, because it can be changed into a prime (75012523) 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 15 ways as a sum of consecutive naturals, for example, 19113 + ... + 22700.

It is an arithmetic number, because the mean of its divisors is an integer number (5268564).

Almost surely, 2^75012522 is an apocalyptic number.

75012522 is an abundant number, since it is smaller than the sum of its proper divisors (93581526).

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

75012522 is a wasteful number, since it uses less digits than its factorization.

75012522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41854.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 75012522 is about 8660.9769656777. The cubic root of 75012522 is about 421.7398012644.

Adding to 75012522 its reverse (22521057), we get a palindrome (97533579).

The spelling of 75012522 in words is "seventy-five million, twelve thousand, five hundred twenty-two".