55411617 has 4 divisors (see below), whose sum is σ = 73882160. Its totient is φ = 36941076.

The previous prime is 55411597. The next prime is 55411633. The reversal of 55411617 is 71611455.

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 55411617 - 2²⁰ = 54363041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55411217) 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, 9235267 + ... + 9235272.

It is an arithmetic number, because the mean of its divisors is an integer number (18470540).

Almost surely, 2^55411617 is an apocalyptic number.

It is an amenable number.

55411617 is a deficient number, since it is larger than the sum of its proper divisors (18470543).

55411617 is a wasteful number, since it uses less digits than its factorization.

55411617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18470542.

The product of its digits is 4200, while the sum is 30.

The square root of 55411617 is about 7443.8979708215. The cubic root of 55411617 is about 381.2415921464.

The spelling of 55411617 in words is "fifty-five million, four hundred eleven thousand, six hundred seventeen".