506555655 has 32 divisors (see below), whose sum is σ = 844535808. Its totient is φ = 258979200.

The previous prime is 506555653. The next prime is 506555671. The reversal of 506555655 is 556555605.

It is not a de Polignac number, because 506555655 - 2¹ = 506555653 is a prime.

It is a super-2 number, since 2×506555655² = 513197263224958050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506555653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44665 + ... + 54845.

It is an arithmetic number, because the mean of its divisors is an integer number (26391744).

Almost surely, 2^506555655 is an apocalyptic number.

506555655 is a deficient number, since it is larger than the sum of its proper divisors (337980153).

506555655 is a wasteful number, since it uses less digits than its factorization.

506555655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10327.

The product of its (nonzero) digits is 562500, while the sum is 42.

The square root of 506555655 is about 22506.7913084029. The cubic root of 506555655 is about 797.1542930885.

The spelling of 506555655 in words is "five hundred six million, five hundred fifty-five thousand, six hundred fifty-five".