20545054 has 8 divisors (see below), whose sum is σ = 30918888. Its totient is φ = 10238760.

The previous prime is 20545051. The next prime is 20545097. The reversal of 20545054 is 45054502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×20545054³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20545051) 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, 16117 + ... + 17344.

It is an arithmetic number, because the mean of its divisors is an integer number (3864861).

Almost surely, 2^20545054 is an apocalyptic number.

20545054 is a deficient number, since it is larger than the sum of its proper divisors (10373834).

20545054 is a wasteful number, since it uses less digits than its factorization.

20545054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33770.

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 20545054 is about 4532.6652203753. The cubic root of 20545054 is about 273.8855347977.

Adding to 20545054 its reverse (45054502), we get a palindrome (65599556).

The spelling of 20545054 in words is "twenty million, five hundred forty-five thousand, fifty-four".