70005565 has 48 divisors (see below), whose sum is σ = 103420800. Its totient is φ = 45290112.

The previous prime is 70005547. The next prime is 70005569. The reversal of 70005565 is 56550007.

It is not a de Polignac number, because 70005565 - 2⁹ = 70005053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70005569) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 419112 + ... + 419278.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^70005565 is an apocalyptic number.

It is an amenable number.

70005565 is a deficient number, since it is larger than the sum of its proper divisors (33415235).

70005565 is a wasteful number, since it uses less digits than its factorization.

70005565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 70005565 is about 8366.9328310917. The cubic root of 70005565 is about 412.1394510975.

The spelling of 70005565 in words is "seventy million, five thousand, five hundred sixty-five".