503404504545 has 16 divisors (see below), whose sum is σ = 805460760000. Its totient is φ = 268477884864.

The previous prime is 503404504517. The next prime is 503404504553. The reversal of 503404504545 is 545405404305.

It is not a de Polignac number, because 503404504545 - 2⁶ = 503404504481 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763887 + ... + 1261083.

It is an arithmetic number, because the mean of its divisors is an integer number (50341297500).

Almost surely, 2^503404504545 is an apocalyptic number.

It is an amenable number.

503404504545 is a deficient number, since it is larger than the sum of its proper divisors (302056255455).

503404504545 is a wasteful number, since it uses less digits than its factorization.

503404504545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564704.

The product of its (nonzero) digits is 480000, while the sum is 39.

The spelling of 503404504545 in words is "five hundred three billion, four hundred four million, five hundred four thousand, five hundred forty-five".