506551222155605 has 8 divisors (see below), whose sum is σ = 663121599912864. Its totient is φ = 368400888840400.

The previous prime is 506551222155593. The next prime is 506551222155607.

It is a happy number.

506551222155605 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 506551222155605 - 2⁴⁶ = 436182477977941 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 (506551222155607) 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, 4605011110451 + ... + 4605011110560.

It is an arithmetic number, because the mean of its divisors is an integer number (82890199989108).

Almost surely, 2^{506551222155605} is an apocalyptic number.

506551222155605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

506551222155605 is a deficient number, since it is larger than the sum of its proper divisors (156570377757259).

506551222155605 is a wasteful number, since it uses less digits than its factorization.

506551222155605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9210022221027.

The product of its (nonzero) digits is 4500000, while the sum is 50.

The spelling of 506551222155605 in words is "five hundred six trillion, five hundred fifty-one billion, two hundred twenty-two million, one hundred fifty-five thousand, six hundred five".