13280625 has 40 divisors (see below), whose sum is σ = 24617120. Its totient is φ = 7074000.

The previous prime is 13280599. The next prime is 13280647. The reversal of 13280625 is 52608231.

13280625 is a `hidden beast` number, since 1 + 32 + 8 + 0 + 625 = 666.

13280625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13280625 - 2²⁰ = 12232049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16482 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (615428).

Almost surely, 2^13280625 is an apocalyptic number.

13280625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13280625 is a deficient number, since it is larger than the sum of its proper divisors (11336495).

13280625 is an frugal number, since it uses more digits than its factorization.

13280625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 13280625 is about 3644.2591839769. The cubic root of 13280625 is about 236.8133444608.

Adding to 13280625 its reverse (52608231), we get a palindrome (65888856).

The spelling of 13280625 in words is "thirteen million, two hundred eighty thousand, six hundred twenty-five".