20554104 has 16 divisors (see below), whose sum is σ = 51385320. Its totient is φ = 6851360.

The previous prime is 20554097. The next prime is 20554109. The reversal of 20554104 is 40145502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428187 + ... + 428234.

Almost surely, 2^20554104 is an apocalyptic number.

20554104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20554104 is an abundant number, since it is smaller than the sum of its proper divisors (30831216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20554104 is a wasteful number, since it uses less digits than its factorization.

20554104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856430 (or 856426 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20554104 is about 4533.6634193553. The cubic root of 20554104 is about 273.9257439925.

Adding to 20554104 its reverse (40145502), we get a palindrome (60699606).

The spelling of 20554104 in words is "twenty million, five hundred fifty-four thousand, one hundred four".