55177249 has 8 divisors (see below), whose sum is σ = 56844200. Its totient is φ = 53519616.

The previous prime is 55177231. The next prime is 55177261. The reversal of 55177249 is 94277155.

It can be written as a sum of positive squares in 4 ways, for example, as 18792225 + 36385024 = 4335^2 + 6032^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55177249 - 2¹¹ = 55175201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55177229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10777 + ... + 15049.

It is an arithmetic number, because the mean of its divisors is an integer number (7105525).

Almost surely, 2^55177249 is an apocalyptic number.

It is an amenable number.

55177249 is a deficient number, since it is larger than the sum of its proper divisors (1666951).

55177249 is a wasteful number, since it uses less digits than its factorization.

55177249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659.

The product of its digits is 88200, while the sum is 40.

The square root of 55177249 is about 7428.1389997765. The cubic root of 55177249 is about 380.7033349879.

The spelling of 55177249 in words is "fifty-five million, one hundred seventy-seven thousand, two hundred forty-nine".