55504123 has 4 divisors (see below), whose sum is σ = 55558888. Its totient is φ = 55449360.

The previous prime is 55504121. The next prime is 55504147. The reversal of 55504123 is 32140555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55504123 - 2¹ = 55504121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55504121) 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, 25833 + ... + 27898.

It is an arithmetic number, because the mean of its divisors is an integer number (13889722).

Almost surely, 2^55504123 is an apocalyptic number.

55504123 is a deficient number, since it is larger than the sum of its proper divisors (54765).

55504123 is a wasteful number, since it uses less digits than its factorization.

55504123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54764.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 55504123 is about 7450.1089253782. The cubic root of 55504123 is about 381.4536266705.

Adding to 55504123 its reverse (32140555), we get a palindrome (87644678).

The spelling of 55504123 in words is "fifty-five million, five hundred four thousand, one hundred twenty-three".