555780655 has 8 divisors (see below), whose sum is σ = 667110384. Its totient is φ = 444508800.

The previous prime is 555780637. The next prime is 555780683. The reversal of 555780655 is 556087555.

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

It is not a de Polignac number, because 555780655 - 2¹¹ = 555778607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10620 + ... + 34990.

It is an arithmetic number, because the mean of its divisors is an integer number (83388798).

Almost surely, 2^555780655 is an apocalyptic number.

555780655 is a deficient number, since it is larger than the sum of its proper divisors (111329729).

555780655 is a wasteful number, since it uses less digits than its factorization.

555780655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28937.

The product of its (nonzero) digits is 1050000, while the sum is 46.

The square root of 555780655 is about 23575.0006362672. Note that the first 3 decimals coincide. The cubic root of 555780655 is about 822.1817050449.

The spelling of 555780655 in words is "five hundred fifty-five million, seven hundred eighty thousand, six hundred fifty-five".