20054655 has 32 divisors (see below), whose sum is σ = 35928000. Its totient is φ = 10613376.

The previous prime is 20054651. The next prime is 20054669. The reversal of 20054655 is 55645002.

20054655 is a `hidden beast` number, since 2 + 0 + 0 + 5 + 4 + 655 = 666.

It is not a de Polignac number, because 20054655 - 2² = 20054651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19617 + ... + 20613.

It is an arithmetic number, because the mean of its divisors is an integer number (1122750).

Almost surely, 2^20054655 is an apocalyptic number.

20054655 is a deficient number, since it is larger than the sum of its proper divisors (15873345).

20054655 is a wasteful number, since it uses less digits than its factorization.

20054655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 20054655 is about 4478.2424007639. The cubic root of 20054655 is about 271.6887975915.

Adding to 20054655 its reverse (55645002), we get a palindrome (75699657).

The spelling of 20054655 in words is "twenty million, fifty-four thousand, six hundred fifty-five".