71052507 has 6 divisors (see below), whose sum is σ = 102631412. Its totient is φ = 47368332.

The previous prime is 71052473. The next prime is 71052511. The reversal of 71052507 is 70525017.

It is not a de Polignac number, because 71052507 - 2⁷ = 71052379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71052307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3947353 + ... + 3947370.

Almost surely, 2^71052507 is an apocalyptic number.

71052507 is a deficient number, since it is larger than the sum of its proper divisors (31578905).

71052507 is a wasteful number, since it uses less digits than its factorization.

71052507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7894729 (or 7894726 counting only the distinct ones).

The product of its (nonzero) digits is 2450, while the sum is 27.

The square root of 71052507 is about 8429.2649145700. The cubic root of 71052507 is about 414.1838258073.

The spelling of 71052507 in words is "seventy-one million, fifty-two thousand, five hundred seven".