75427222 has 8 divisors (see below), whose sum is σ = 121844016. Its totient is φ = 34812552.

The previous prime is 75427217. The next prime is 75427223. The reversal of 75427222 is 22272457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75427223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450498 + ... + 1450549.

It is an arithmetic number, because the mean of its divisors is an integer number (15230502).

Almost surely, 2^75427222 is an apocalyptic number.

75427222 is a deficient number, since it is larger than the sum of its proper divisors (46416794).

75427222 is a wasteful number, since it uses less digits than its factorization.

75427222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901062.

The product of its digits is 15680, while the sum is 31.

The square root of 75427222 is about 8684.8846854751. The cubic root of 75427222 is about 422.5155570057.

Adding to 75427222 its reverse (22272457), we get a palindrome (97699679).

The spelling of 75427222 in words is "seventy-five million, four hundred twenty-seven thousand, two hundred twenty-two".