20441550 has 24 divisors (see below), whose sum is σ = 50695416. Its totient is φ = 5451040.

The previous prime is 20441471. The next prime is 20441563. The reversal of 20441550 is 5514402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67989 + ... + 68288.

It is an arithmetic number, because the mean of its divisors is an integer number (2112309).

Almost surely, 2^20441550 is an apocalyptic number.

20441550 is an abundant number, since it is smaller than the sum of its proper divisors (30253866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20441550 is a wasteful number, since it uses less digits than its factorization.

20441550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136292 (or 136287 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20441550 is about 4521.2332388409. The cubic root of 20441550 is about 273.4248239566.

Adding to 20441550 its reverse (5514402), we get a palindrome (25955952).

The spelling of 20441550 in words is "twenty million, four hundred forty-one thousand, five hundred fifty".