705580523 has 4 divisors (see below), whose sum is σ = 742716360. Its totient is φ = 668444688.

The previous prime is 705580517. The next prime is 705580531. The reversal of 705580523 is 325085507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325085507 = 5479 ⋅59333.

It is a cyclic number.

It is not a de Polignac number, because 705580523 - 2¹² = 705576427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705580723) 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, 18567890 + ... + 18567927.

It is an arithmetic number, because the mean of its divisors is an integer number (185679090).

Almost surely, 2^705580523 is an apocalyptic number.

705580523 is a deficient number, since it is larger than the sum of its proper divisors (37135837).

705580523 is a wasteful number, since it uses less digits than its factorization.

705580523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37135836.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 705580523 is about 26562.7657257297. The cubic root of 705580523 is about 890.2572681328.

It can be divided in two parts, 7055 and 80523, that added together give a palindrome (87578).

The spelling of 705580523 in words is "seven hundred five million, five hundred eighty thousand, five hundred twenty-three".