15078225 has 24 divisors (see below), whose sum is σ = 26016192. Its totient is φ = 7691200.

The previous prime is 15078209. The next prime is 15078227. The reversal of 15078225 is 52287051.

It is not a de Polignac number, because 15078225 - 2⁴ = 15078209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15078192 and 15078201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15078227) 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 23 ways as a sum of consecutive naturals, for example, 2646 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (1084008).

Almost surely, 2^15078225 is an apocalyptic number.

15078225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15078225 is a deficient number, since it is larger than the sum of its proper divisors (10937967).

15078225 is a wasteful number, since it uses less digits than its factorization.

15078225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8777 (or 8772 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 15078225 is about 3883.0690181865. The cubic root of 15078225 is about 247.0491742096.

The spelling of 15078225 in words is "fifteen million, seventy-eight thousand, two hundred twenty-five".