71713525 has 24 divisors (see below), whose sum is σ = 96243840. Its totient is φ = 52693440.

The previous prime is 71713513. The next prime is 71713541. The reversal of 71713525 is 52531717.

It is not a de Polignac number, because 71713525 - 2²¹ = 69616373 is a prime.

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, 85056 + ... + 85894.

It is an arithmetic number, because the mean of its divisors is an integer number (4010160).

Almost surely, 2^71713525 is an apocalyptic number.

It is an amenable number.

71713525 is a deficient number, since it is larger than the sum of its proper divisors (24530315).

71713525 is a wasteful number, since it uses less digits than its factorization.

71713525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1120 counting only the distinct ones).

The product of its digits is 7350, while the sum is 31.

The square root of 71713525 is about 8468.3838481732. The cubic root of 71713525 is about 415.4642793508.

The spelling of 71713525 in words is "seventy-one million, seven hundred thirteen thousand, five hundred twenty-five".