13750625 has 30 divisors (see below), whose sum is σ = 20032650. Its totient is φ = 9408000.

The previous prime is 13750609. The next prime is 13750657. The reversal of 13750625 is 52605731.

It can be written as a sum of positive squares in 5 ways, for example, as 4648336 + 9102289 = 2156^2 + 3017^2 .

It is not a de Polignac number, because 13750625 - 2⁴ = 13750609 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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 29 ways as a sum of consecutive naturals, for example, 30401 + ... + 30849.

It is an arithmetic number, because the mean of its divisors is an integer number (667755).

Almost surely, 2^13750625 is an apocalyptic number.

It is an amenable number.

13750625 is a deficient number, since it is larger than the sum of its proper divisors (6282025).

13750625 is an frugal number, since it uses more digits than its factorization.

13750625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 13750625 is about 3708.1835175730. The cubic root of 13750625 is about 239.5746226617.

The spelling of 13750625 in words is "thirteen million, seven hundred fifty thousand, six hundred twenty-five".