20553411 has 8 divisors (see below), whose sum is σ = 27463680. Its totient is φ = 13672712.

The previous prime is 20553361. The next prime is 20553433. The reversal of 20553411 is 11435502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20553411 - 2⁹ = 20552899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20553451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5715 + ... + 8588.

It is an arithmetic number, because the mean of its divisors is an integer number (3432960).

Almost surely, 2^20553411 is an apocalyptic number.

20553411 is a deficient number, since it is larger than the sum of its proper divisors (6910269).

20553411 is a wasteful number, since it uses less digits than its factorization.

20553411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14785.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 20553411 is about 4533.5869904525. The cubic root of 20553411 is about 273.9226654074.

Adding to 20553411 its reverse (11435502), we get a palindrome (31988913).

The spelling of 20553411 in words is "twenty million, five hundred fifty-three thousand, four hundred eleven".