71872325 has 24 divisors (see below), whose sum is σ = 103594560. Its totient is φ = 48441600.

The previous prime is 71872321. The next prime is 71872357. The reversal of 71872325 is 52327817.

It is not a de Polignac number, because 71872325 - 2² = 71872321 is a prime.

It is a super-2 number, since 2×71872325² = 10331262201811250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71872321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6845 + ... + 13805.

It is an arithmetic number, because the mean of its divisors is an integer number (4316440).

Almost surely, 2^71872325 is an apocalyptic number.

It is an amenable number.

71872325 is a deficient number, since it is larger than the sum of its proper divisors (31722235).

71872325 is a wasteful number, since it uses less digits than its factorization.

71872325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7037 (or 7032 counting only the distinct ones).

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

The square root of 71872325 is about 8477.7547145456. The cubic root of 71872325 is about 415.7707166151.

The spelling of 71872325 in words is "seventy-one million, eight hundred seventy-two thousand, three hundred twenty-five".