55124011 has 4 divisors (see below), whose sum is σ = 55333872. Its totient is φ = 54914152.

The previous prime is 55123993. The next prime is 55124021. The reversal of 55124011 is 11042155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11042155 = 5 ⋅2208431.

It is a cyclic number.

It is not a de Polignac number, because 55124011 - 2⁹ = 55123499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55124011.

It is not an unprimeable number, because it can be changed into a prime (55124021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104536 + ... + 105061.

It is an arithmetic number, because the mean of its divisors is an integer number (13833468).

Almost surely, 2^55124011 is an apocalyptic number.

55124011 is a deficient number, since it is larger than the sum of its proper divisors (209861).

55124011 is a wasteful number, since it uses less digits than its factorization.

55124011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209860.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 55124011 is about 7424.5545994356. The cubic root of 55124011 is about 380.5808545180.

Adding to 55124011 its reverse (11042155), we get a palindrome (66166166).

The spelling of 55124011 in words is "fifty-five million, one hundred twenty-four thousand, eleven".