20623054 has 4 divisors (see below), whose sum is σ = 30934584. Its totient is φ = 10311526.

The previous prime is 20623051. The next prime is 20623061. The reversal of 20623054 is 45032602.

It is a happy number.

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

It is a super-3 number, since 3×20623054³ (a number of 23 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20623051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155762 + ... + 5155765.

It is an arithmetic number, because the mean of its divisors is an integer number (7733646).

Almost surely, 2^20623054 is an apocalyptic number.

20623054 is a deficient number, since it is larger than the sum of its proper divisors (10311530).

20623054 is a wasteful number, since it uses less digits than its factorization.

20623054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10311529.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20623054 is about 4541.2612785437. The cubic root of 20623054 is about 274.2317023535.

Adding to 20623054 its reverse (45032602), we get a palindrome (65655656).

The spelling of 20623054 in words is "twenty million, six hundred twenty-three thousand, fifty-four".