71079551 has 8 divisors (see below), whose sum is σ = 77401200. Its totient is φ = 65016000.

The previous prime is 71079521. The next prime is 71079577. The reversal of 71079551 is 15597017.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71079551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71079521) 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, 63950 + ... + 65051.

It is an arithmetic number, because the mean of its divisors is an integer number (9675150).

Almost surely, 2^71079551 is an apocalyptic number.

71079551 is a deficient number, since it is larger than the sum of its proper divisors (6321649).

71079551 is a wasteful number, since it uses less digits than its factorization.

71079551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129049.

The product of its (nonzero) digits is 11025, while the sum is 35.

The square root of 71079551 is about 8430.8689350505. The cubic root of 71079551 is about 414.2363680141.

The spelling of 71079551 in words is "seventy-one million, seventy-nine thousand, five hundred fifty-one".