13757225 has 6 divisors (see below), whose sum is σ = 17058990. Its totient is φ = 11005760.

The previous prime is 13757221. The next prime is 13757309. The reversal of 13757225 is 52275731.

It can be written as a sum of positive squares in 3 ways, for example, as 15376 + 13741849 = 124^2 + 3707^2 .

It is not a de Polignac number, because 13757225 - 2² = 13757221 is a prime.

It is a super-2 number, since 2×13757225² = 378522479401250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13757191 and 13757200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13757221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275120 + ... + 275169.

It is an arithmetic number, because the mean of its divisors is an integer number (2843165).

Almost surely, 2^13757225 is an apocalyptic number.

It is an amenable number.

13757225 is a deficient number, since it is larger than the sum of its proper divisors (3301765).

13757225 is an equidigital number, since it uses as much as digits as its factorization.

13757225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550299 (or 550294 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 13757225 is about 3709.0733344058. The cubic root of 13757225 is about 239.6129467281.

The spelling of 13757225 in words is "thirteen million, seven hundred fifty-seven thousand, two hundred twenty-five".