655810043 has 8 divisors (see below), whose sum is σ = 751427040. Its totient is φ = 560675520.

The previous prime is 655810033. The next prime is 655810049. The reversal of 655810043 is 340018556.

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 655810043 - 2²⁸ = 387374587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 655809991 and 655810009.

It is not an unprimeable number, because it can be changed into a prime (655810049) 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, 117698 + ... + 123143.

It is an arithmetic number, because the mean of its divisors is an integer number (93928380).

Almost surely, 2^655810043 is an apocalyptic number.

655810043 is a deficient number, since it is larger than the sum of its proper divisors (95616997).

655810043 is a wasteful number, since it uses less digits than its factorization.

655810043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241237.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 655810043 is about 25608.7883938307. The cubic root of 655810043 is about 868.8124206965.

Adding to 655810043 its reverse (340018556), we get a palindrome (995828599).

The spelling of 655810043 in words is "six hundred fifty-five million, eight hundred ten thousand, forty-three".