13257500 has 30 divisors (see below), whose sum is σ = 28996968. Its totient is φ = 5302000.

The previous prime is 13257493. The next prime is 13257521. The reversal of 13257500 is 575231.

It is a super-2 number, since 2×13257500² = 351522612500000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 152 + ... + 5151.

Almost surely, 2^13257500 is an apocalyptic number.

13257500 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 13257500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14498484).

13257500 is an abundant number, since it is smaller than the sum of its proper divisors (15739468).

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

13257500 is an equidigital number, since it uses as much as digits as its factorization.

13257500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327 (or 5310 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 13257500 is about 3641.0850031275. The cubic root of 13257500 is about 236.6758135282.

The spelling of 13257500 in words is "thirteen million, two hundred fifty-seven thousand, five hundred".