70505056 has 24 divisors (see below), whose sum is σ = 139172040. Its totient is φ = 35159808.

The previous prime is 70505047. The next prime is 70505131. The reversal of 70505056 is 65050507.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10395 + ... + 15781.

It is an arithmetic number, because the mean of its divisors is an integer number (5798835).

Almost surely, 2^70505056 is an apocalyptic number.

It is an amenable number.

70505056 is a deficient number, since it is larger than the sum of its proper divisors (68666984).

70505056 is a wasteful number, since it uses less digits than its factorization.

70505056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 5798 counting only the distinct ones).

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

The square root of 70505056 is about 8396.7288868940. The cubic root of 70505056 is about 413.1173365617.

The spelling of 70505056 in words is "seventy million, five hundred five thousand, fifty-six".