71575265 has 8 divisors (see below), whose sum is σ = 87298728. Its totient is φ = 56321280.

The previous prime is 71575243. The next prime is 71575267. The reversal of 71575265 is 56257517.

It can be written as a sum of positive squares in 4 ways, for example, as 8737936 + 62837329 = 2956^2 + 7927^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 71575265 - 2¹⁰ = 71574241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71575267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117032 + ... + 117641.

It is an arithmetic number, because the mean of its divisors is an integer number (10912341).

Almost surely, 2^71575265 is an apocalyptic number.

It is an amenable number.

71575265 is a deficient number, since it is larger than the sum of its proper divisors (15723463).

71575265 is a wasteful number, since it uses less digits than its factorization.

71575265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234739.

The product of its digits is 73500, while the sum is 38.

The square root of 71575265 is about 8460.2166047921. The cubic root of 71575265 is about 415.1971096363.

The spelling of 71575265 in words is "seventy-one million, five hundred seventy-five thousand, two hundred sixty-five".