16625545 has 16 divisors (see below), whose sum is σ = 20528640. Its totient is φ = 12919744.

The previous prime is 16625537. The next prime is 16625549. The reversal of 16625545 is 54552661.

It is a cyclic number.

It is not a de Polignac number, because 16625545 - 2³ = 16625537 is a prime.

It is a super-3 number, since 3×16625545³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16625545.

It is not an unprimeable number, because it can be changed into a prime (16625549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61671 + ... + 61939.

It is an arithmetic number, because the mean of its divisors is an integer number (1283040).

Almost surely, 2^16625545 is an apocalyptic number.

It is an amenable number.

16625545 is a deficient number, since it is larger than the sum of its proper divisors (3903095).

16625545 is a wasteful number, since it uses less digits than its factorization.

16625545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584.

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

The square root of 16625545 is about 4077.4434392153. The cubic root of 16625545 is about 255.2262249773.

The spelling of 16625545 in words is "sixteen million, six hundred twenty-five thousand, five hundred forty-five".