511055005506 has 16 divisors (see below), whose sum is σ = 1022566540800. Its totient is φ = 170275580208.

The previous prime is 511055005493. The next prime is 511055005507. The reversal of 511055005506 is 605500550115.

It is a super-2 number, since 2×511055005506² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511055005507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19007521 + ... + 19034388.

It is an arithmetic number, because the mean of its divisors is an integer number (63910408800).

Almost surely, 2^511055005506 is an apocalyptic number.

511055005506 is an abundant number, since it is smaller than the sum of its proper divisors (511511535294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511055005506 is a wasteful number, since it uses less digits than its factorization.

511055005506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38044153.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 511055005506 in words is "five hundred eleven billion, fifty-five million, five thousand, five hundred six".