20888485 has 8 divisors (see below), whose sum is σ = 26156160. Its totient is φ = 15984144.

The previous prime is 20888479. The next prime is 20888489. The reversal of 20888485 is 58488802.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20888485 - 2³ = 20888477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20888489) 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, 90705 + ... + 90934.

It is an arithmetic number, because the mean of its divisors is an integer number (3269520).

Almost surely, 2^20888485 is an apocalyptic number.

It is an amenable number.

20888485 is a deficient number, since it is larger than the sum of its proper divisors (5267675).

20888485 is a wasteful number, since it uses less digits than its factorization.

20888485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181667.

The product of its (nonzero) digits is 163840, while the sum is 43.

The square root of 20888485 is about 4570.3922151168. The cubic root of 20888485 is about 275.4031991826.

The spelling of 20888485 in words is "twenty million, eight hundred eighty-eight thousand, four hundred eighty-five".