71885252 has 6 divisors (see below), whose sum is σ = 125799198. Its totient is φ = 35942624.

The previous prime is 71885251. The next prime is 71885257. The reversal of 71885252 is 25258817.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36554116 + 35331136 = 6046^2 + 5944^2 .

It is not an unprimeable number, because it can be changed into a prime (71885251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8985653 + ... + 8985660.

It is an arithmetic number, because the mean of its divisors is an integer number (20966533).

Almost surely, 2^71885252 is an apocalyptic number.

It is an amenable number.

71885252 is a deficient number, since it is larger than the sum of its proper divisors (53913946).

71885252 is a wasteful number, since it uses less digits than its factorization.

71885252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17971317 (or 17971315 counting only the distinct ones).

The product of its digits is 44800, while the sum is 38.

The square root of 71885252 is about 8478.5170873213. The cubic root of 71885252 is about 415.7956420452.

The spelling of 71885252 in words is "seventy-one million, eight hundred eighty-five thousand, two hundred fifty-two".