75030522 has 16 divisors (see below), whose sum is σ = 171498432. Its totient is φ = 21437280.

The previous prime is 75030491. The next prime is 75030523. The reversal of 75030522 is 22503057.

It is a junction number, because it is equal to n+sod(n) for n = 75030492 and 75030501.

It is not an unprimeable number, because it can be changed into a prime (75030523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 893179 + ... + 893262.

It is an arithmetic number, because the mean of its divisors is an integer number (10718652).

Almost surely, 2^75030522 is an apocalyptic number.

75030522 is an abundant number, since it is smaller than the sum of its proper divisors (96467910).

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

75030522 is a wasteful number, since it uses less digits than its factorization.

75030522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786453.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 75030522 is about 8662.0160470874. The cubic root of 75030522 is about 421.7735321185.

Adding to 75030522 its reverse (22503057), we get a palindrome (97533579).

The spelling of 75030522 in words is "seventy-five million, thirty thousand, five hundred twenty-two".