55005671 has 4 divisors (see below), whose sum is σ = 62863632. Its totient is φ = 47147712.

The previous prime is 55005667. The next prime is 55005697. The reversal of 55005671 is 17650055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17650055 = 5 ⋅3530011.

It is a cyclic number.

It is not a de Polignac number, because 55005671 - 2² = 55005667 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 (55005631) 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, 3928970 + ... + 3928983.

It is an arithmetic number, because the mean of its divisors is an integer number (15715908).

Almost surely, 2^55005671 is an apocalyptic number.

55005671 is a deficient number, since it is larger than the sum of its proper divisors (7857961).

55005671 is an equidigital number, since it uses as much as digits as its factorization.

55005671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857960.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 55005671 is about 7416.5808159825. The cubic root of 55005671 is about 380.3083162593.

The spelling of 55005671 in words is "fifty-five million, five thousand, six hundred seventy-one".