75000722 has 4 divisors (see below), whose sum is σ = 112501086. Its totient is φ = 37500360.

The previous prime is 75000721. The next prime is 75000743. The reversal of 75000722 is 22700057.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22700057 = 23 ⋅986959.

It can be written as a sum of positive squares in only one way, i.e., 60855601 + 14145121 = 7801^2 + 3761^2 .

It is not an unprimeable number, because it can be changed into a prime (75000721) 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 as a sum of consecutive naturals, namely, 18750179 + ... + 18750182.

Almost surely, 2^75000722 is an apocalyptic number.

75000722 is a deficient number, since it is larger than the sum of its proper divisors (37500364).

75000722 is a wasteful number, since it uses less digits than its factorization.

75000722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37500363.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 75000722 is about 8660.2957224335. The cubic root of 75000722 is about 421.7176858874.

Adding to 75000722 its reverse (22700057), we get a palindrome (97700779).

The spelling of 75000722 in words is "seventy-five million, seven hundred twenty-two", and thus it is an aban number.