505442577601 has 4 divisors (see below), whose sum is σ = 544322775892. Its totient is φ = 466562379312.

The previous prime is 505442577599. The next prime is 505442577611. The reversal of 505442577601 is 106775244505.

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

It can be written as a sum of positive squares in 2 ways, for example, as 167182854400 + 338259723201 = 408880^2 + 581601^2 .

It is a cyclic number.

It is not a de Polignac number, because 505442577601 - 2¹ = 505442577599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505442577611) 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, 19440099126 + ... + 19440099151.

It is an arithmetic number, because the mean of its divisors is an integer number (136080693973).

Almost surely, 2^505442577601 is an apocalyptic number.

It is an amenable number.

505442577601 is a deficient number, since it is larger than the sum of its proper divisors (38880198291).

505442577601 is a wasteful number, since it uses less digits than its factorization.

505442577601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38880198290.

The product of its (nonzero) digits is 1176000, while the sum is 46.

The spelling of 505442577601 in words is "five hundred five billion, four hundred forty-two million, five hundred seventy-seven thousand, six hundred one".