20552446 has 8 divisors (see below), whose sum is σ = 31410504. Its totient is φ = 10082280.

The previous prime is 20552423. The next prime is 20552447. The reversal of 20552446 is 64425502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20552447) 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, 96840 + ... + 97051.

It is an arithmetic number, because the mean of its divisors is an integer number (3926313).

Almost surely, 2^20552446 is an apocalyptic number.

20552446 is a deficient number, since it is larger than the sum of its proper divisors (10858058).

20552446 is a wasteful number, since it uses less digits than its factorization.

20552446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193946.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20552446 is about 4533.4805613347. The cubic root of 20552446 is about 273.9183783735.

Adding to 20552446 its reverse (64425502), we get a palindrome (84977948).

The spelling of 20552446 in words is "twenty million, five hundred fifty-two thousand, four hundred forty-six".