16545625 has 20 divisors (see below), whose sum is σ = 21593088. Its totient is φ = 12650000.

The previous prime is 16545619. The next prime is 16545629. The reversal of 16545625 is 52654561.

It is a de Polignac number, because none of the positive numbers 2^k-16545625 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16545629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13800 + ... + 14950.

Almost surely, 2^16545625 is an apocalyptic number.

It is an amenable number.

16545625 is a deficient number, since it is larger than the sum of its proper divisors (5047463).

16545625 is an equidigital number, since it uses as much as digits as its factorization.

16545625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194 (or 1179 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 16545625 is about 4067.6313746454. The cubic root of 16545625 is about 254.8166052874.

The spelling of 16545625 in words is "sixteen million, five hundred forty-five thousand, six hundred twenty-five".