55504101 has 4 divisors (see below), whose sum is σ = 74005472. Its totient is φ = 37002732.

The previous prime is 55504067. The next prime is 55504103. The reversal of 55504101 is 10140555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55504101 - 2¹⁸ = 55241957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55504103) 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, 9250681 + ... + 9250686.

It is an arithmetic number, because the mean of its divisors is an integer number (18501368).

Almost surely, 2^55504101 is an apocalyptic number.

It is an amenable number.

55504101 is a deficient number, since it is larger than the sum of its proper divisors (18501371).

55504101 is a wasteful number, since it uses less digits than its factorization.

55504101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18501370.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 55504101 is about 7450.1074488896. The cubic root of 55504101 is about 381.4535762720.

Adding to 55504101 its reverse (10140555), we get a palindrome (65644656).

The spelling of 55504101 in words is "fifty-five million, five hundred four thousand, one hundred one".