20611050 has 48 divisors (see below), whose sum is σ = 51395520. Its totient is φ = 5466240.

The previous prime is 20611033. The next prime is 20611057. The reversal of 20611050 is 5011602.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20611057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46731 + ... + 47169.

It is an arithmetic number, because the mean of its divisors is an integer number (1070740).

Almost surely, 2^20611050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20611050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25697760).

20611050 is an abundant number, since it is smaller than the sum of its proper divisors (30784470).

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

20611050 is a wasteful number, since it uses less digits than its factorization.

20611050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 20611050 is about 4539.9394269087. The cubic root of 20611050 is about 274.1784849484.

Adding to 20611050 its reverse (5011602), we get a palindrome (25622652).

The spelling of 20611050 in words is "twenty million, six hundred eleven thousand, fifty".