20552326 has 4 divisors (see below), whose sum is σ = 30828492. Its totient is φ = 10276162.

The previous prime is 20552291. The next prime is 20552333. The reversal of 20552326 is 62325502.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20552326.

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, 5138080 + ... + 5138083.

It is an arithmetic number, because the mean of its divisors is an integer number (7707123).

Almost surely, 2^20552326 is an apocalyptic number.

20552326 is a deficient number, since it is larger than the sum of its proper divisors (10276166).

20552326 is a wasteful number, since it uses less digits than its factorization.

20552326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10276165.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 20552326 is about 4533.4673264511. The cubic root of 20552326 is about 273.9178452615.

Adding to 20552326 its reverse (62325502), we get a palindrome (82877828).

The spelling of 20552326 in words is "twenty million, five hundred fifty-two thousand, three hundred twenty-six".