71090533 has 16 divisors (see below), whose sum is σ = 77898240. Its totient is φ = 64627200.

The previous prime is 71090527. The next prime is 71090581. The reversal of 71090533 is 33509017.

It is a cyclic number.

It is not a de Polignac number, because 71090533 - 2⁵ = 71090501 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 (71090333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80253 + ... + 81133.

It is an arithmetic number, because the mean of its divisors is an integer number (4868640).

Almost surely, 2^71090533 is an apocalyptic number.

It is an amenable number.

71090533 is a deficient number, since it is larger than the sum of its proper divisors (6807707).

71090533 is a wasteful number, since it uses less digits than its factorization.

71090533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 71090533 is about 8431.5202069378. The cubic root of 71090533 is about 414.2577004952.

The spelling of 71090533 in words is "seventy-one million, ninety thousand, five hundred thirty-three".