20553454 has 8 divisors (see below), whose sum is σ = 30870720. Its totient is φ = 10263216.

The previous prime is 20553451. The next prime is 20553461. The reversal of 20553454 is 45435502.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20553451) 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, 4734 + ... + 7969.

It is an arithmetic number, because the mean of its divisors is an integer number (3858840).

Almost surely, 2^20553454 is an apocalyptic number.

20553454 is a deficient number, since it is larger than the sum of its proper divisors (10317266).

20553454 is a wasteful number, since it uses less digits than its factorization.

20553454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13514.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 20553454 is about 4533.5917328317. The cubic root of 20553454 is about 273.9228564327.

Adding to 20553454 its reverse (45435502), we get a palindrome (65988956).

The spelling of 20553454 in words is "twenty million, five hundred fifty-three thousand, four hundred fifty-four".