70705505 has 16 divisors (see below), whose sum is σ = 91569744. Its totient is φ = 52101120.

The previous prime is 70705489. The next prime is 70705511. The reversal of 70705505 is 50550707.

It can be written as a sum of positive squares in 8 ways, for example, as 4787344 + 65918161 = 2188^2 + 8119^2 .

It is not a de Polignac number, because 70705505 - 2⁴ = 70705489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40817 + ... + 42513.

It is an arithmetic number, because the mean of its divisors is an integer number (5723109).

Almost surely, 2^70705505 is an apocalyptic number.

It is an amenable number.

70705505 is a deficient number, since it is larger than the sum of its proper divisors (20864239).

70705505 is a wasteful number, since it uses less digits than its factorization.

70705505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356.

The product of its (nonzero) digits is 6125, while the sum is 29.

The square root of 70705505 is about 8408.6565514356. The cubic root of 70705505 is about 413.5084697603.

The spelling of 70705505 in words is "seventy million, seven hundred five thousand, five hundred five".