71382553 has 8 divisors (see below), whose sum is σ = 80384256. Its totient is φ = 62799600.

The previous prime is 71382533. The next prime is 71382557. The reversal of 71382553 is 35528317.

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

It is a cyclic number.

It is not a de Polignac number, because 71382553 - 2¹³ = 71374361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71382557) 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, 104326 + ... + 105007.

It is an arithmetic number, because the mean of its divisors is an integer number (10048032).

Almost surely, 2^71382553 is an apocalyptic number.

It is an amenable number.

71382553 is a deficient number, since it is larger than the sum of its proper divisors (9001703).

71382553 is a wasteful number, since it uses less digits than its factorization.

71382553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209375.

The product of its digits is 25200, while the sum is 34.

The square root of 71382553 is about 8448.8196216986. The cubic root of 71382553 is about 414.8241438106.

The spelling of 71382553 in words is "seventy-one million, three hundred eighty-two thousand, five hundred fifty-three".