71575 has 12 divisors (see below), whose sum is σ = 101680. Its totient is φ = 48960.

The previous prime is 71569. The next prime is 71593. The reversal of 71575 is 57517.

It is a de Polignac number, because none of the positive numbers 2^k-71575 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30 + ... + 379.

2⁷¹⁵⁷⁵ is an apocalyptic number.

71575 is a deficient number, since it is larger than the sum of its proper divisors (30105).

71575 is a wasteful number, since it uses less digits than its factorization.

71575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 421 counting only the distinct ones).

The product of its digits is 1225, while the sum is 25.

The square root of 71575 is about 267.5350444334. The cubic root of 71575 is about 41.5196597228.

It can be divided in two parts, 71 and 575, that added together give a palindrome (646).

The spelling of 71575 in words is "seventy-one thousand, five hundred seventy-five".