501105555011 has 2 divisors, whose sum is σ = 501105555012. Its totient is φ = 501105555010.

The previous prime is 501105554959. The next prime is 501105555043. The reversal of 501105555011 is 110555501105.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 501105555011 - 2⁶ = 501105554947 is a prime.

It is a super-2 number, since 2×501105555011² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (501105555061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250552777505 + 250552777506.

It is an arithmetic number, because the mean of its divisors is an integer number (250552777506).

Almost surely, 2^501105555011 is an apocalyptic number.

501105555011 is a deficient number, since it is larger than the sum of its proper divisors (1).

501105555011 is an equidigital number, since it uses as much as digits as its factorization.

501105555011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3125, while the sum is 29.

The spelling of 501105555011 in words is "five hundred one billion, one hundred five million, five hundred fifty-five thousand, eleven".