655379579 has 4 divisors (see below), whose sum is σ = 660094680. Its totient is φ = 650664480.

The previous prime is 655379573. The next prime is 655379591. The reversal of 655379579 is 975973556.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655379579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655379573) 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, 2357342 + ... + 2357619.

It is an arithmetic number, because the mean of its divisors is an integer number (165023670).

Almost surely, 2^655379579 is an apocalyptic number.

655379579 is a deficient number, since it is larger than the sum of its proper divisors (4715101).

655379579 is a wasteful number, since it uses less digits than its factorization.

655379579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4715100.

The product of its digits is 8930250, while the sum is 56.

The square root of 655379579 is about 25600.3823994877. The cubic root of 655379579 is about 868.6222872214.

The spelling of 655379579 in words is "six hundred fifty-five million, three hundred seventy-nine thousand, five hundred seventy-nine".