20632485 has 16 divisors (see below), whose sum is σ = 34151040. Its totient is φ = 10624320.

The previous prime is 20632481. The next prime is 20632511. The reversal of 20632485 is 58423602.

It is not a de Polignac number, because 20632485 - 2² = 20632481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20632481) 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, 23281 + ... + 24150.

It is an arithmetic number, because the mean of its divisors is an integer number (2134440).

Almost surely, 2^20632485 is an apocalyptic number.

It is an amenable number.

20632485 is a deficient number, since it is larger than the sum of its proper divisors (13518555).

20632485 is a wasteful number, since it uses less digits than its factorization.

20632485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47468.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 20632485 is about 4542.2995277722. The cubic root of 20632485 is about 274.2734983786.

The spelling of 20632485 in words is "twenty million, six hundred thirty-two thousand, four hundred eighty-five".