503155420405 has 16 divisors (see below), whose sum is σ = 658696152384. Its totient is φ = 365920122880.

The previous prime is 503155420393. The next prime is 503155420429. The reversal of 503155420405 is 504024551305.

It is not a de Polignac number, because 503155420405 - 2⁷ = 503155420277 is a prime.

It is a Duffinian number.

It is a congruent 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, 1985502 + ... + 2224528.

It is an arithmetic number, because the mean of its divisors is an integer number (41168509524).

Almost surely, 2^503155420405 is an apocalyptic number.

503155420405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

503155420405 is a deficient number, since it is larger than the sum of its proper divisors (155540731979).

503155420405 is a wasteful number, since it uses less digits than its factorization.

503155420405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277316.

The product of its (nonzero) digits is 60000, while the sum is 34.

The spelling of 503155420405 in words is "five hundred three billion, one hundred fifty-five million, four hundred twenty thousand, four hundred five".