71732825 has 12 divisors (see below), whose sum is σ = 91353900. Its totient is φ = 55834560.

The previous prime is 71732807. The next prime is 71732827. The reversal of 71732825 is 52823717.

It can be written as a sum of positive squares in 6 ways, for example, as 1038361 + 70694464 = 1019^2 + 8408^2 .

It is not a de Polignac number, because 71732825 - 2⁸ = 71732569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71732827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37850 + ... + 39699.

It is an arithmetic number, because the mean of its divisors is an integer number (7612825).

Almost surely, 2^71732825 is an apocalyptic number.

It is an amenable number.

71732825 is a deficient number, since it is larger than the sum of its proper divisors (19621075).

71732825 is a wasteful number, since it uses less digits than its factorization.

71732825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77596 (or 77591 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 71732825 is about 8469.5233041772. The cubic root of 71732825 is about 415.5015468043.

The spelling of 71732825 in words is "seventy-one million, seven hundred thirty-two thousand, eight hundred twenty-five".