20441651 has 2 divisors, whose sum is σ = 20441652. Its totient is φ = 20441650.

The previous prime is 20441639. The next prime is 20441669. The reversal of 20441651 is 15614402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20441651 - 2¹⁸ = 20179507 is a prime.

It is a super-2 number, since 2×20441651² = 835722191211602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20441611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220825 + 10220826.

It is an arithmetic number, because the mean of its divisors is an integer number (10220826).

Almost surely, 2^20441651 is an apocalyptic number.

20441651 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441651 is an equidigital number, since it uses as much as digits as its factorization.

20441651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20441651 is about 4521.2444083460. The cubic root of 20441651 is about 273.4252742790.

The spelling of 20441651 in words is "twenty million, four hundred forty-one thousand, six hundred fifty-one".