20554334 has 4 divisors (see below), whose sum is σ = 30831504. Its totient is φ = 10277166.

The previous prime is 20554321. The next prime is 20554337. The reversal of 20554334 is 43345502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20554337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5138582 + ... + 5138585.

It is an arithmetic number, because the mean of its divisors is an integer number (7707876).

Almost surely, 2^20554334 is an apocalyptic number.

20554334 is a deficient number, since it is larger than the sum of its proper divisors (10277170).

20554334 is a wasteful number, since it uses less digits than its factorization.

20554334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10277169.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 20554334 is about 4533.6887850844. The cubic root of 20554334 is about 273.9267657298.

Adding to 20554334 its reverse (43345502), we get a palindrome (63899836).

The spelling of 20554334 in words is "twenty million, five hundred fifty-four thousand, three hundred thirty-four".