705550123 has 4 divisors (see below), whose sum is σ = 742684360. Its totient is φ = 668415888.

The previous prime is 705550121. The next prime is 705550129. The reversal of 705550123 is 321055507.

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

It is a cyclic number.

It is not a de Polignac number, because 705550123 - 2¹ = 705550121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 705550091 and 705550100.

It is not an unprimeable number, because it can be changed into a prime (705550121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18567090 + ... + 18567127.

It is an arithmetic number, because the mean of its divisors is an integer number (185671090).

Almost surely, 2^705550123 is an apocalyptic number.

705550123 is a deficient number, since it is larger than the sum of its proper divisors (37134237).

705550123 is a wasteful number, since it uses less digits than its factorization.

705550123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37134236.

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

The square root of 705550123 is about 26562.1934899963. The cubic root of 705550123 is about 890.2444823445.

The spelling of 705550123 in words is "seven hundred five million, five hundred fifty thousand, one hundred twenty-three".