13425420505 has 32 divisors (see below), whose sum is σ = 19227207168. Its totient is φ = 8799014400.

The previous prime is 13425420497. The next prime is 13425420527. The reversal of 13425420505 is 50502452431.

It is not a de Polignac number, because 13425420505 - 2³ = 13425420497 is a prime.

It is a Duffinian 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, 1186575 + ... + 1197835.

It is an arithmetic number, because the mean of its divisors is an integer number (600850224).

Almost surely, 2^13425420505 is an apocalyptic number.

It is an amenable number.

13425420505 is a deficient number, since it is larger than the sum of its proper divisors (5801786663).

13425420505 is a wasteful number, since it uses less digits than its factorization.

13425420505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 13425420505 its reverse (50502452431), we get a palindrome (63927872936).

The spelling of 13425420505 in words is "thirteen billion, four hundred twenty-five million, four hundred twenty thousand, five hundred five".