70506005 has 4 divisors (see below), whose sum is σ = 84607212. Its totient is φ = 56404800.

The previous prime is 70505993. The next prime is 70506049. The reversal of 70506005 is 50060507.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52041796 + 18464209 = 7214^2 + 4297^2 .

It is not a de Polignac number, because 70506005 - 2¹⁴ = 70489621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7050596 + ... + 7050605.

It is an arithmetic number, because the mean of its divisors is an integer number (21151803).

Almost surely, 2^70506005 is an apocalyptic number.

It is an amenable number.

70506005 is a deficient number, since it is larger than the sum of its proper divisors (14101207).

70506005 is a wasteful number, since it uses less digits than its factorization.

70506005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14101206.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 70506005 is about 8396.7853968051. The cubic root of 70506005 is about 413.1191900770.

The spelling of 70506005 in words is "seventy million, five hundred six thousand, five".