55466617 has 4 divisors (see below), whose sum is σ = 55566756. Its totient is φ = 55366480.

The previous prime is 55466581. The next prime is 55466623. The reversal of 55466617 is 71666455.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25644096 + 29822521 = 5064^2 + 5461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55466617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55466617.

It is not an unprimeable number, because it can be changed into a prime (55466717) 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, 49234 + ... + 50347.

It is an arithmetic number, because the mean of its divisors is an integer number (13891689).

Almost surely, 2^55466617 is an apocalyptic number.

It is an amenable number.

55466617 is a deficient number, since it is larger than the sum of its proper divisors (100139).

55466617 is an equidigital number, since it uses as much as digits as its factorization.

55466617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100138.

The product of its digits is 151200, while the sum is 40.

The square root of 55466617 is about 7447.5913555995. The cubic root of 55466617 is about 381.3676869680.

The spelling of 55466617 in words is "fifty-five million, four hundred sixty-six thousand, six hundred seventeen".