20051153 has 4 divisors (see below), whose sum is σ = 20062260. Its totient is φ = 20040048.

The previous prime is 20051149. The next prime is 20051159. The reversal of 20051153 is 35115002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11888704 + 8162449 = 3448^2 + 2857^2 .

It is a cyclic number.

It is not a de Polignac number, because 20051153 - 2² = 20051149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20051159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2150 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (5015565).

Almost surely, 2^20051153 is an apocalyptic number.

It is an amenable number.

20051153 is a deficient number, since it is larger than the sum of its proper divisors (11107).

20051153 is an equidigital number, since it uses as much as digits as its factorization.

20051153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 20051153 is about 4477.8513820805. The cubic root of 20051153 is about 271.6729823181.

Adding to 20051153 its reverse (35115002), we get a palindrome (55166155).

The spelling of 20051153 in words is "twenty million, fifty-one thousand, one hundred fifty-three".