13825505 has 16 divisors (see below), whose sum is σ = 17656704. Its totient is φ = 10356480.

The previous prime is 13825501. The next prime is 13825549. The reversal of 13825505 is 50552831.

It is not a de Polignac number, because 13825505 - 2² = 13825501 is a prime.

It is a super-2 number, since 2×13825505² = 382289177010050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13825501) 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, 26174 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (1103544).

Almost surely, 2^13825505 is an apocalyptic number.

It is an amenable number.

13825505 is a deficient number, since it is larger than the sum of its proper divisors (3831199).

13825505 is a wasteful number, since it uses less digits than its factorization.

13825505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 13825505 is about 3718.2663971265. The cubic root of 13825505 is about 240.0087091747.

The spelling of 13825505 in words is "thirteen million, eight hundred twenty-five thousand, five hundred five".