20541411 has 16 divisors (see below), whose sum is σ = 33198720. Its totient is φ = 12449160.

The previous prime is 20541407. The next prime is 20541419. The reversal of 20541411 is 11414502.

It is not a de Polignac number, because 20541411 - 2² = 20541407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20541419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34285 + ... + 34878.

It is an arithmetic number, because the mean of its divisors is an integer number (2074920).

Almost surely, 2^20541411 is an apocalyptic number.

20541411 is a deficient number, since it is larger than the sum of its proper divisors (12657309).

20541411 is a wasteful number, since it uses less digits than its factorization.

20541411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69183 (or 69177 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 20541411 is about 4532.2633418635. The cubic root of 20541411 is about 273.8693455974.

Adding to 20541411 its reverse (11414502), we get a palindrome (31955913).

It can be divided in two parts, 205 and 41411, that added together give a triangular number (41616 = T₂₈₈).

The spelling of 20541411 in words is "twenty million, five hundred forty-one thousand, four hundred eleven".