70052071 has 4 divisors (see below), whose sum is σ = 70516144. Its totient is φ = 69588000.

The previous prime is 70052009. The next prime is 70052093. The reversal of 70052071 is 17025007.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70052071 - 2¹⁵ = 70019303 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 (70059071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231810 + ... + 232111.

It is an arithmetic number, because the mean of its divisors is an integer number (17629036).

Almost surely, 2^70052071 is an apocalyptic number.

70052071 is a deficient number, since it is larger than the sum of its proper divisors (464073).

70052071 is a wasteful number, since it uses less digits than its factorization.

70052071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464072.

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 70052071 is about 8369.7115243000. The cubic root of 70052071 is about 412.2306948653.

Adding to 70052071 its reverse (17025007), we get a palindrome (87077078).

The spelling of 70052071 in words is "seventy million, fifty-two thousand, seventy-one".