20655741 has 8 divisors (see below), whose sum is σ = 27624064. Its totient is φ = 13728960.

The previous prime is 20655737. The next prime is 20655749. The reversal of 20655741 is 14755602.

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

It is not a de Polignac number, because 20655741 - 2² = 20655737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20655699 and 20655708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20655749) 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, 9205 + ... + 11226.

It is an arithmetic number, because the mean of its divisors is an integer number (3453008).

Almost surely, 2^20655741 is an apocalyptic number.

It is an amenable number.

20655741 is a deficient number, since it is larger than the sum of its proper divisors (6968323).

20655741 is a wasteful number, since it uses less digits than its factorization.

20655741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20771.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 20655741 is about 4544.8587436795. The cubic root of 20655741 is about 274.3765092287.

The spelling of 20655741 in words is "twenty million, six hundred fifty-five thousand, seven hundred forty-one".