505420011503 has 8 divisors (see below), whose sum is σ = 580386616320. Its totient is φ = 435289961880.

The previous prime is 505420011497. The next prime is 505420011533. The reversal of 505420011503 is 305110024505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505420011503 - 2¹⁶ = 505419945967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505420011533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209138575 + ... + 1209138992.

It is an arithmetic number, because the mean of its divisors is an integer number (72548327040).

Almost surely, 2^505420011503 is an apocalyptic number.

505420011503 is a deficient number, since it is larger than the sum of its proper divisors (74966604817).

505420011503 is a wasteful number, since it uses less digits than its factorization.

505420011503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418277597.

The product of its (nonzero) digits is 3000, while the sum is 26.

The spelling of 505420011503 in words is "five hundred five billion, four hundred twenty million, eleven thousand, five hundred three".