71225264 has 40 divisors (see below), whose sum is σ = 151032000. Its totient is φ = 32270400.

The previous prime is 71225207. The next prime is 71225267. The reversal of 71225264 is 46252217.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (71225267) 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, 87419 + ... + 88229.

It is an arithmetic number, because the mean of its divisors is an integer number (3775800).

Almost surely, 2^71225264 is an apocalyptic number.

It is an amenable number.

71225264 is an abundant number, since it is smaller than the sum of its proper divisors (79806736).

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

71225264 is a wasteful number, since it uses less digits than its factorization.

71225264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1323 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 71225264 is about 8439.5061466889. The cubic root of 71225264 is about 414.5192361726.

The spelling of 71225264 in words is "seventy-one million, two hundred twenty-five thousand, two hundred sixty-four".