55521411 has 16 divisors (see below), whose sum is σ = 80898048. Its totient is φ = 33591200.

The previous prime is 55521377. The next prime is 55521443. The reversal of 55521411 is 11412555.

It is a cyclic number.

It is not a de Polignac number, because 55521411 - 2¹¹ = 55519363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55521491) 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, 25246 + ... + 27356.

It is an arithmetic number, because the mean of its divisors is an integer number (5056128).

Almost surely, 2^55521411 is an apocalyptic number.

55521411 is a deficient number, since it is larger than the sum of its proper divisors (25376637).

55521411 is a wasteful number, since it uses less digits than its factorization.

55521411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922.

The product of its digits is 1000, while the sum is 24.

The square root of 55521411 is about 7451.2690865382. The cubic root of 55521411 is about 381.4932266461.

Adding to 55521411 its reverse (11412555), we get a palindrome (66933966).

The spelling of 55521411 in words is "fifty-five million, five hundred twenty-one thousand, four hundred eleven".