501055551006 has 16 divisors (see below), whose sum is σ = 1002511496064. Its totient is φ = 166951784664.

The previous prime is 501055550971. The next prime is 501055551019. The reversal of 501055551006 is 600155550105.

It is a super-2 number, since 2×501055551006² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16666816 + ... + 16696851.

It is an arithmetic number, because the mean of its divisors is an integer number (62656968504).

Almost surely, 2^501055551006 is an apocalyptic number.

501055551006 is an abundant number, since it is smaller than the sum of its proper divisors (501455945058).

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

501055551006 is a wasteful number, since it uses less digits than its factorization.

501055551006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366175.

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

Subtracting 501055551006 from its reverse (600155550105), we obtain a palindrome (99099999099).

The spelling of 501055551006 in words is "five hundred one billion, fifty-five million, five hundred fifty-one thousand, six".