655382653 has 4 divisors (see below), whose sum is σ = 655887708. Its totient is φ = 654877600.

The previous prime is 655382641. The next prime is 655382671. The reversal of 655382653 is 356283556.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69839449 + 585543204 = 8357^2 + 24198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-655382653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655383653) 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, 250576 + ... + 253177.

It is an arithmetic number, because the mean of its divisors is an integer number (163971927).

Almost surely, 2^655382653 is an apocalyptic number.

It is an amenable number.

655382653 is a deficient number, since it is larger than the sum of its proper divisors (505055).

655382653 is a wasteful number, since it uses less digits than its factorization.

655382653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505054.

The product of its digits is 648000, while the sum is 43.

The square root of 655382653 is about 25600.4424375830. The cubic root of 655382653 is about 868.6236452846.

The spelling of 655382653 in words is "six hundred fifty-five million, three hundred eighty-two thousand, six hundred fifty-three".