655564043 has 8 divisors (see below), whose sum is σ = 662289600. Its totient is φ = 648866880.

The previous prime is 655564031. The next prime is 655564067. The reversal of 655564043 is 340465556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655564043 - 2⁸ = 655563787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 655563988 and 655564006.

It is not an unprimeable number, because it can be changed into a prime (655564003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40958 + ... + 54668.

It is an arithmetic number, because the mean of its divisors is an integer number (82786200).

Almost surely, 2^655564043 is an apocalyptic number.

655564043 is a deficient number, since it is larger than the sum of its proper divisors (6725557).

655564043 is a wasteful number, since it uses less digits than its factorization.

655564043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14197.

The product of its (nonzero) digits is 216000, while the sum is 38.

The square root of 655564043 is about 25603.9849046979. The cubic root of 655564043 is about 868.7037741013.

The spelling of 655564043 in words is "six hundred fifty-five million, five hundred sixty-four thousand, forty-three".