71552117 has 32 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 54183168.

The previous prime is 71552111. The next prime is 71552161. The reversal of 71552117 is 71125517.

It is not a de Polignac number, because 71552117 - 2⁴ = 71552101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71552117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71552111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265859 + ... + 266127.

It is an arithmetic number, because the mean of its divisors is an integer number (2872800).

Almost surely, 2^71552117 is an apocalyptic number.

It is an amenable number.

71552117 is a deficient number, since it is larger than the sum of its proper divisors (20377483).

71552117 is a wasteful number, since it uses less digits than its factorization.

71552117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its digits is 2450, while the sum is 29.

The square root of 71552117 is about 8458.8484440850. The cubic root of 71552117 is about 415.1523454804.

The spelling of 71552117 in words is "seventy-one million, five hundred fifty-two thousand, one hundred seventeen".