20680054 has 8 divisors (see below), whose sum is σ = 31225968. Its totient is φ = 10271400.

The previous prime is 20680043. The next prime is 20680063. The reversal of 20680054 is 45008602.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33937 + ... + 34540.

It is an arithmetic number, because the mean of its divisors is an integer number (3903246).

Almost surely, 2^20680054 is an apocalyptic number.

20680054 is a deficient number, since it is larger than the sum of its proper divisors (10545914).

20680054 is a wasteful number, since it uses less digits than its factorization.

20680054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68630.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 20680054 is about 4547.5327376502. The cubic root of 20680054 is about 274.4841193507.

Adding to 20680054 its reverse (45008602), we get a palindrome (65688656).

The spelling of 20680054 in words is "twenty million, six hundred eighty thousand, fifty-four".