55104513 has 4 divisors (see below), whose sum is σ = 73472688. Its totient is φ = 36736340.

The previous prime is 55104473. The next prime is 55104523. The reversal of 55104513 is 31540155.

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 a cyclic number.

It is not a de Polignac number, because 55104513 - 2²⁴ = 38327297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55104523) 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, 9184083 + ... + 9184088.

It is an arithmetic number, because the mean of its divisors is an integer number (18368172).

Almost surely, 2^55104513 is an apocalyptic number.

It is an amenable number.

55104513 is a deficient number, since it is larger than the sum of its proper divisors (18368175).

55104513 is a wasteful number, since it uses less digits than its factorization.

55104513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18368174.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 55104513 is about 7423.2414079026. The cubic root of 55104513 is about 380.5359772769.

Adding to 55104513 its reverse (31540155), we get a palindrome (86644668).

The spelling of 55104513 in words is "fifty-five million, one hundred four thousand, five hundred thirteen".