15380625 has 40 divisors (see below), whose sum is σ = 27641152. Its totient is φ = 7560000.

The previous prime is 15380623. The next prime is 15380669. The reversal of 15380625 is 52608351.

It is not a de Polignac number, because 15380625 - 2¹ = 15380623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15380592 and 15380601.

It is not an unprimeable number, because it can be changed into a prime (15380623) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 24060 + ... + 24690.

Almost surely, 2^15380625 is an apocalyptic number.

15380625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15380625 is a deficient number, since it is larger than the sum of its proper divisors (12260527).

15380625 is an equidigital number, since it uses as much as digits as its factorization.

15380625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 15380625 is about 3921.8139935494. The cubic root of 15380625 is about 248.6898122943.

Adding to 15380625 its reverse (52608351), we get a palindrome (67988976).

The spelling of 15380625 in words is "fifteen million, three hundred eighty thousand, six hundred twenty-five".