71253772 has 12 divisors (see below), whose sum is σ = 124764640. Its totient is φ = 35606736.

The previous prime is 71253751. The next prime is 71253773. The reversal of 71253772 is 27735217.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71253773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5254 + ... + 13042.

Almost surely, 2^71253772 is an apocalyptic number.

It is an amenable number.

71253772 is a deficient number, since it is larger than the sum of its proper divisors (53510868).

71253772 is a wasteful number, since it uses less digits than its factorization.

71253772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10080 (or 10078 counting only the distinct ones).

The product of its digits is 20580, while the sum is 34.

The square root of 71253772 is about 8441.1949391067. The cubic root of 71253772 is about 414.5745327414.

Adding to 71253772 its reverse (27735217), we get a palindrome (98988989).

The spelling of 71253772 in words is "seventy-one million, two hundred fifty-three thousand, seven hundred seventy-two".