70705550 has 48 divisors (see below), whose sum is σ = 140294592. Its totient is φ = 26419200.

The previous prime is 70705549. The next prime is 70705559. The reversal of 70705550 is 5550707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70705559) 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 23 ways as a sum of consecutive naturals, for example, 163835 + ... + 164265.

It is an arithmetic number, because the mean of its divisors is an integer number (2922804).

Almost surely, 2^70705550 is an apocalyptic number.

70705550 is a deficient number, since it is larger than the sum of its proper divisors (69589042).

70705550 is a wasteful number, since it uses less digits than its factorization.

70705550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 648 counting only the distinct ones).

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

The square root of 70705550 is about 8408.6592272490. The cubic root of 70705550 is about 413.5085574851.

The spelling of 70705550 in words is "seventy million, seven hundred five thousand, five hundred fifty".