503430505405 has 32 divisors (see below), whose sum is σ = 615880224000. Its totient is φ = 394944076800.

The previous prime is 503430505387. The next prime is 503430505427. The reversal of 503430505405 is 504505034305.

It is a de Polignac number, because none of the positive numbers 2^k-503430505405 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184337890 + ... + 184340620.

It is an arithmetic number, because the mean of its divisors is an integer number (19246257000).

Almost surely, 2^503430505405 is an apocalyptic number.

It is an amenable number.

503430505405 is a deficient number, since it is larger than the sum of its proper divisors (112449718595).

503430505405 is a wasteful number, since it uses less digits than its factorization.

503430505405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 90000, while the sum is 34.

The spelling of 503430505405 in words is "five hundred three billion, four hundred thirty million, five hundred five thousand, four hundred five".