71725259 has 4 divisors (see below), whose sum is σ = 71782704. Its totient is φ = 71667816.

The previous prime is 71725253. The next prime is 71725267. The reversal of 71725259 is 95252717.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71725259 - 2¹² = 71721163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71725253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26807 + ... + 29360.

It is an arithmetic number, because the mean of its divisors is an integer number (17945676).

Almost surely, 2^71725259 is an apocalyptic number.

71725259 is a deficient number, since it is larger than the sum of its proper divisors (57445).

71725259 is a wasteful number, since it uses less digits than its factorization.

71725259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57444.

The product of its digits is 44100, while the sum is 38.

The square root of 71725259 is about 8469.0766320774. The cubic root of 71725259 is about 415.4869379868.

The spelling of 71725259 in words is "seventy-one million, seven hundred twenty-five thousand, two hundred fifty-nine".