13025520 has 120 divisors (see below), whose sum is σ = 44491200. Its totient is φ = 3414528.

The previous prime is 13025503. The next prime is 13025527. The reversal of 13025520 is 2552031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13025493 and 13025502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13025527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56766 + ... + 56994.

It is an arithmetic number, because the mean of its divisors is an integer number (370760).

Almost surely, 2^13025520 is an apocalyptic number.

13025520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13025520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22245600).

13025520 is an abundant number, since it is smaller than the sum of its proper divisors (31465680).

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

13025520 is a wasteful number, since it uses less digits than its factorization.

13025520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 13025520 is about 3609.0885275925. The cubic root of 13025520 is about 235.2872298964.

Adding to 13025520 its reverse (2552031), we get a palindrome (15577551).

The spelling of 13025520 in words is "thirteen million, twenty-five thousand, five hundred twenty".