55179649 has 4 divisors (see below), whose sum is σ = 63062464. Its totient is φ = 47296836.

The previous prime is 55179647. The next prime is 55179661. The reversal of 55179649 is 94697155.

55179649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55179649 - 2¹ = 55179647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55179599 and 55179608.

It is not an unprimeable number, because it can be changed into a prime (55179647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3941397 + ... + 3941410.

It is an arithmetic number, because the mean of its divisors is an integer number (15765616).

Almost surely, 2^55179649 is an apocalyptic number.

It is an amenable number.

55179649 is a deficient number, since it is larger than the sum of its proper divisors (7882815).

55179649 is an equidigital number, since it uses as much as digits as its factorization.

55179649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7882814.

The product of its digits is 340200, while the sum is 46.

The square root of 55179649 is about 7428.3005458853. The cubic root of 55179649 is about 380.7088546225.

It can be divided in two parts, 551 and 79649, that added together give a triangular number (80200 = T₄₀₀).

The spelling of 55179649 in words is "fifty-five million, one hundred seventy-nine thousand, six hundred forty-nine".