71881325 has 24 divisors (see below), whose sum is σ = 93744000. Its totient is φ = 54570560.

The previous prime is 71881307. The next prime is 71881333. The reversal of 71881325 is 52318817.

It is not a de Polignac number, because 71881325 - 2⁶ = 71881261 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85256 + ... + 86094.

It is an arithmetic number, because the mean of its divisors is an integer number (3906000).

Almost surely, 2^71881325 is an apocalyptic number.

It is an amenable number.

71881325 is a deficient number, since it is larger than the sum of its proper divisors (21862675).

71881325 is a wasteful number, since it uses less digits than its factorization.

71881325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021 (or 1016 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 71881325 is about 8478.2854988494. The cubic root of 71881325 is about 415.7880704448.

The spelling of 71881325 in words is "seventy-one million, eight hundred eighty-one thousand, three hundred twenty-five".