13125500 has 24 divisors (see below), whose sum is σ = 28667184. Its totient is φ = 5250000.

The previous prime is 13125499. The next prime is 13125509. The reversal of 13125500 is 552131.

13125500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125509) 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, 12626 + ... + 13625.

It is an arithmetic number, because the mean of its divisors is an integer number (1194466).

Almost surely, 2^13125500 is an apocalyptic number.

13125500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13125500 is an abundant number, since it is smaller than the sum of its proper divisors (15541684).

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

13125500 is a wasteful number, since it uses less digits than its factorization.

13125500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26270 (or 26258 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 13125500 is about 3622.9131924461. The cubic root of 13125500 is about 235.8876943390.

Adding to 13125500 its reverse (552131), we get a palindrome (13677631).

The spelling of 13125500 in words is "thirteen million, one hundred twenty-five thousand, five hundred".