13700025 has 18 divisors (see below), whose sum is σ = 24538670. Its totient is φ = 7306560.

The previous prime is 13700021. The next prime is 13700039. The reversal of 13700025 is 52000731.

13700025 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 17424 + 13682601 = 132^2 + 3699^2 .

It is not a de Polignac number, because 13700025 - 2² = 13700021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13699980 and 13700007.

It is not an unprimeable number, because it can be changed into a prime (13700021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30220 + ... + 30669.

Almost surely, 2^13700025 is an apocalyptic number.

13700025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13700025 is a deficient number, since it is larger than the sum of its proper divisors (10838645).

13700025 is a wasteful number, since it uses less digits than its factorization.

13700025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60905 (or 60897 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 13700025 is about 3701.3544818080. The cubic root of 13700025 is about 239.2803966188.

Adding to 13700025 its reverse (52000731), we get a palindrome (65700756).

The spelling of 13700025 in words is "thirteen million, seven hundred thousand, twenty-five".