13405050505 has 32 divisors (see below), whose sum is σ = 20280741120. Its totient is φ = 8262481920.

The previous prime is 13405050499. The next prime is 13405050557. The reversal of 13405050505 is 50505050431.

It is not a de Polignac number, because 13405050505 - 2²¹ = 13402953353 is a prime.

13405050505 is a modest number, since divided by 50505 gives 13405 as remainder.

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, 161344 + ... + 229873.

It is an arithmetic number, because the mean of its divisors is an integer number (633773160).

Almost surely, 2^13405050505 is an apocalyptic number.

It is an amenable number.

13405050505 is a deficient number, since it is larger than the sum of its proper divisors (6875690615).

13405050505 is a wasteful number, since it uses less digits than its factorization.

13405050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391329.

The product of its (nonzero) digits is 7500, while the sum is 28.

The spelling of 13405050505 in words is "thirteen billion, four hundred five million, fifty thousand, five hundred five".