13425540 has 24 divisors (see below), whose sum is σ = 37591680. Its totient is φ = 3580128.

The previous prime is 13425539. The next prime is 13425547. The reversal of 13425540 is 4552431.

13425540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13425540.

It is not an unprimeable number, because it can be changed into a prime (13425547) 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, 111820 + ... + 111939.

It is an arithmetic number, because the mean of its divisors is an integer number (1566320).

Almost surely, 2^13425540 is an apocalyptic number.

13425540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13425540 is an abundant number, since it is smaller than the sum of its proper divisors (24166140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13425540 is a wasteful number, since it uses less digits than its factorization.

13425540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223771 (or 223769 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 13425540 is about 3664.0878810422. The cubic root of 13425540 is about 237.6715805372.

Adding to 13425540 its reverse (4552431), we get a palindrome (17977971).

The spelling of 13425540 in words is "thirteen million, four hundred twenty-five thousand, five hundred forty".