501105056011 has 4 divisors (see below), whose sum is σ = 572691492592. Its totient is φ = 429518619432.

The previous prime is 501105055991. The next prime is 501105056029. The reversal of 501105056011 is 110650501105.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 501105056011 - 2¹⁷ = 501104924939 is a prime.

It is a super-2 number, since 2×501105056011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501105056911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35793218280 + ... + 35793218293.

It is an arithmetic number, because the mean of its divisors is an integer number (143172873148).

Almost surely, 2^501105056011 is an apocalyptic number.

501105056011 is a deficient number, since it is larger than the sum of its proper divisors (71586436581).

501105056011 is an equidigital number, since it uses as much as digits as its factorization.

501105056011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71586436580.

The product of its (nonzero) digits is 750, while the sum is 25.

Adding to 501105056011 its reverse (110650501105), we get a palindrome (611755557116).

The spelling of 501105056011 in words is "five hundred one billion, one hundred five million, fifty-six thousand, eleven".