21410054 has 4 divisors (see below), whose sum is σ = 32115084. Its totient is φ = 10705026.

The previous prime is 21410029. The next prime is 21410063. The reversal of 21410054 is 45001412.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5352512 + ... + 5352515.

It is an arithmetic number, because the mean of its divisors is an integer number (8028771).

Almost surely, 2^21410054 is an apocalyptic number.

21410054 is a deficient number, since it is larger than the sum of its proper divisors (10705030).

21410054 is a wasteful number, since it uses less digits than its factorization.

21410054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10705029.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 21410054 is about 4627.0999556958. The cubic root of 21410054 is about 277.6765816033.

Adding to 21410054 its reverse (45001412), we get a palindrome (66411466).

The spelling of 21410054 in words is "twenty-one million, four hundred ten thousand, fifty-four".