501105560051 has 4 divisors (see below), whose sum is σ = 501917725272. Its totient is φ = 500293394832.

The previous prime is 501105560047. The next prime is 501105560077. The reversal of 501105560051 is 150065501105.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 501105560051 - 2² = 501105560047 is a prime.

It is a super-2 number, since 2×501105560051² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501105559996 and 501105560023.

It is not an unprimeable number, because it can be changed into a prime (501105560041) 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 3 ways as a sum of consecutive naturals, for example, 406081685 + ... + 406082918.

It is an arithmetic number, because the mean of its divisors is an integer number (125479431318).

Almost surely, 2^501105560051 is an apocalyptic number.

501105560051 is a deficient number, since it is larger than the sum of its proper divisors (812165221).

501105560051 is an equidigital number, since it uses as much as digits as its factorization.

501105560051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812165220.

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 501105560051 in words is "five hundred one billion, one hundred five million, five hundred sixty thousand, fifty-one".