55049549 has 4 divisors (see below), whose sum is σ = 56220864. Its totient is φ = 53878236.

The previous prime is 55049513. The next prime is 55049551. The reversal of 55049549 is 94594055.

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 55049549 - 2¹² = 55045453 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 (55049509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585587 + ... + 585680.

It is an arithmetic number, because the mean of its divisors is an integer number (14055216).

Almost surely, 2^55049549 is an apocalyptic number.

It is an amenable number.

55049549 is a deficient number, since it is larger than the sum of its proper divisors (1171315).

55049549 is a wasteful number, since it uses less digits than its factorization.

55049549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171314.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 55049549 is about 7419.5383279555. The cubic root of 55049549 is about 380.4094133089.

The spelling of 55049549 in words is "fifty-five million, forty-nine thousand, five hundred forty-nine".