13425512505 has 16 divisors (see below), whose sum is σ = 22414769280. Its totient is φ = 6848956928.

The previous prime is 13425512501. The next prime is 13425512533. The reversal of 13425512505 is 50521552431.

It is not a de Polignac number, because 13425512505 - 2² = 13425512501 is a prime.

It is a super-2 number, since 2×13425512505² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13425512501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19456920 + ... + 19457609.

It is an arithmetic number, because the mean of its divisors is an integer number (1400923080).

Almost surely, 2^13425512505 is an apocalyptic number.

13425512505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13425512505 is a deficient number, since it is larger than the sum of its proper divisors (8989256775).

13425512505 is a wasteful number, since it uses less digits than its factorization.

13425512505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38914560.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 13425512505 in words is "thirteen billion, four hundred twenty-five million, five hundred twelve thousand, five hundred five".