15625065 has 8 divisors (see below), whose sum is σ = 25000128. Its totient is φ = 8333360.

The previous prime is 15625061. The next prime is 15625067. The reversal of 15625065 is 56052651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 15625065 - 2² = 15625061 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15625061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520821 + ... + 520850.

It is an arithmetic number, because the mean of its divisors is an integer number (3125016).

Almost surely, 2^15625065 is an apocalyptic number.

15625065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15625065 is a deficient number, since it is larger than the sum of its proper divisors (9375063).

15625065 is a wasteful number, since it uses less digits than its factorization.

15625065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041679.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 15625065 is about 3952.8552971238. The cubic root of 15625065 is about 250.0003466662. Note that the first 3 decimals are identical.

The spelling of 15625065 in words is "fifteen million, six hundred twenty-five thousand, sixty-five".