75221116 has 6 divisors (see below), whose sum is σ = 131636960. Its totient is φ = 37610556.

The previous prime is 75221089. The next prime is 75221119. The reversal of 75221116 is 61112257.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75221119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9402636 + ... + 9402643.

Almost surely, 2^75221116 is an apocalyptic number.

It is an amenable number.

75221116 is a deficient number, since it is larger than the sum of its proper divisors (56415844).

75221116 is a wasteful number, since it uses less digits than its factorization.

75221116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18805283 (or 18805281 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 75221116 is about 8673.0107805767. The cubic root of 75221116 is about 422.1303626058.

The spelling of 75221116 in words is "seventy-five million, two hundred twenty-one thousand, one hundred sixteen".