21404003054 has 16 divisors (see below), whose sum is σ = 36696454368. Its totient is φ = 9172174752.

The previous prime is 21404003029. The next prime is 21404003057. The reversal of 21404003054 is 45030040412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21404003057) 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, 65564 + ... + 217040.

It is an arithmetic number, because the mean of its divisors is an integer number (2293528398).

Almost surely, 2^21404003054 is an apocalyptic number.

21404003054 is a deficient number, since it is larger than the sum of its proper divisors (15292451314).

21404003054 is a wasteful number, since it uses less digits than its factorization.

21404003054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161579.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 21404003054 its reverse (45030040412), we get a palindrome (66434043466).

The spelling of 21404003054 in words is "twenty-one billion, four hundred four million, three thousand, fifty-four".