16625087 has 4 divisors (see below), whose sum is σ = 16746576. Its totient is φ = 16503600.

The previous prime is 16625071. The next prime is 16625143. The reversal of 16625087 is 78052661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78052661 = 17 ⋅4591333.

It is a cyclic number.

It is not a de Polignac number, because 16625087 - 2⁴ = 16625071 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 (16625387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60539 + ... + 60812.

It is an arithmetic number, because the mean of its divisors is an integer number (4186644).

Almost surely, 2^16625087 is an apocalyptic number.

16625087 is a deficient number, since it is larger than the sum of its proper divisors (121489).

16625087 is a wasteful number, since it uses less digits than its factorization.

16625087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121488.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 16625087 is about 4077.3872761856. The cubic root of 16625087 is about 255.2238813011.

The spelling of 16625087 in words is "sixteen million, six hundred twenty-five thousand, eighty-seven".