506425044401 has 4 divisors (see below), whose sum is σ = 515980233972. Its totient is φ = 496869854832.

The previous prime is 506425044353. The next prime is 506425044407. The reversal of 506425044401 is 104440524605.

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 416314010176 + 90111034225 = 645224^2 + 300185^2 .

It is a cyclic number.

It is not a de Polignac number, because 506425044401 - 2⁶ = 506425044337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506425044407) 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, 4777594706 + ... + 4777594811.

It is an arithmetic number, because the mean of its divisors is an integer number (128995058493).

Almost surely, 2^506425044401 is an apocalyptic number.

It is an amenable number.

506425044401 is a deficient number, since it is larger than the sum of its proper divisors (9555189571).

506425044401 is an equidigital number, since it uses as much as digits as its factorization.

506425044401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9555189570.

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 506425044401 in words is "five hundred six billion, four hundred twenty-five million, forty-four thousand, four hundred one".