20625595 has 24 divisors (see below), whose sum is σ = 26714016. Its totient is φ = 15257088.

The previous prime is 20625593. The next prime is 20625599. The reversal of 20625595 is 59552602.

It is not a de Polignac number, because 20625595 - 2¹ = 20625593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20625595.

It is not an unprimeable number, because it can be changed into a prime (20625593) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212587 + ... + 212683.

It is an arithmetic number, because the mean of its divisors is an integer number (1113084).

Almost surely, 2^20625595 is an apocalyptic number.

20625595 is a deficient number, since it is larger than the sum of its proper divisors (6088421).

20625595 is an equidigital number, since it uses as much as digits as its factorization.

20625595 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 20625595 is about 4541.5410380178. The cubic root of 20625595 is about 274.2429647356.

The spelling of 20625595 in words is "twenty million, six hundred twenty-five thousand, five hundred ninety-five".