505100105051 has 4 divisors (see below), whose sum is σ = 513380434704. Its totient is φ = 496819775400.

The previous prime is 505100104981. The next prime is 505100105071. The reversal of 505100105051 is 150501001505.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505100105051 is a prime.

It is a super-3 number, since 3×505100105051³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505100105071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4140164735 + ... + 4140164856.

It is an arithmetic number, because the mean of its divisors is an integer number (128345108676).

Almost surely, 2^505100105051 is an apocalyptic number.

505100105051 is a deficient number, since it is larger than the sum of its proper divisors (8280329653).

505100105051 is an equidigital number, since it uses as much as digits as its factorization.

505100105051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8280329652.

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 505100105051 its reverse (150501001505), we get a palindrome (655601106556).

The spelling of 505100105051 in words is "five hundred five billion, one hundred million, one hundred five thousand, fifty-one".