505561060001 has 4 divisors (see below), whose sum is σ = 517891817604. Its totient is φ = 493230302400.

The previous prime is 505561059917. The next prime is 505561060007. The reversal of 505561060001 is 100060165505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100060165505 = 5 ⋅20012033101.

It can be written as a sum of positive squares in 2 ways, for example, as 248462371600 + 257098688401 = 498460^2 + 507049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505561060001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505561060007) 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, 6165378740 + ... + 6165378821.

It is an arithmetic number, because the mean of its divisors is an integer number (129472954401).

Almost surely, 2^505561060001 is an apocalyptic number.

It is an amenable number.

505561060001 is a deficient number, since it is larger than the sum of its proper divisors (12330757603).

505561060001 is a wasteful number, since it uses less digits than its factorization.

505561060001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12330757602.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 505561060001 in words is "five hundred five billion, five hundred sixty-one million, sixty thousand, one".