20810054 has 16 divisors (see below), whose sum is σ = 32961600. Its totient is φ = 9826344.

The previous prime is 20810033. The next prime is 20810063. The reversal of 20810054 is 45001802.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15269 + ... + 16575.

It is an arithmetic number, because the mean of its divisors is an integer number (2060100).

Almost surely, 2^20810054 is an apocalyptic number.

20810054 is a deficient number, since it is larger than the sum of its proper divisors (12151546).

20810054 is a wasteful number, since it uses less digits than its factorization.

20810054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 20810054 is about 4561.8038098980. The cubic root of 20810054 is about 275.0580769901.

Adding to 20810054 its reverse (45001802), we get a palindrome (65811856).

The spelling of 20810054 in words is "twenty million, eight hundred ten thousand, fifty-four".