503545555004401 has 12 divisors (see below), whose sum is σ = 630815310665652. Its totient is φ = 398409669893088.

The previous prime is 503545555004389. The next prime is 503545555004477. The reversal of 503545555004401 is 104400555545305.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 183966470603776 + 319579084400625 = 13563424^2 + 17876775^2 .

It is not a de Polignac number, because 503545555004401 - 2⁹ = 503545555003889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (503545555005401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395247687750 + ... + 395247689023.

It is an arithmetic number, because the mean of its divisors is an integer number (52567942555471).

Almost surely, 2^{503545555004401} is an apocalyptic number.

It is an amenable number.

503545555004401 is a deficient number, since it is larger than the sum of its proper divisors (127269755661251).

503545555004401 is a wasteful number, since it uses less digits than its factorization.

503545555004401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790495376800 (or 790495376793 counting only the distinct ones).

The product of its (nonzero) digits is 3000000, while the sum is 46.

The spelling of 503545555004401 in words is "five hundred three trillion, five hundred forty-five billion, five hundred fifty-five million, four thousand, four hundred one".