55919449 has 8 divisors (see below), whose sum is σ = 57633408. Its totient is φ = 54222240.

The previous prime is 55919441. The next prime is 55919483. The reversal of 55919449 is 94491955.

It is a happy number.

55919449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55919449 - 2³ = 55919441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55919399 and 55919408.

It is not an unprimeable number, because it can be changed into a prime (55919441) 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 7 ways as a sum of consecutive naturals, for example, 2764 + ... + 10930.

It is an arithmetic number, because the mean of its divisors is an integer number (7204176).

Almost surely, 2^55919449 is an apocalyptic number.

It is an amenable number.

55919449 is a deficient number, since it is larger than the sum of its proper divisors (1713959).

55919449 is a wasteful number, since it uses less digits than its factorization.

55919449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375.

The product of its digits is 291600, while the sum is 46.

The square root of 55919449 is about 7477.9307966843. The cubic root of 55919449 is about 382.4027098168.

The spelling of 55919449 in words is "fifty-five million, nine hundred nineteen thousand, four hundred forty-nine".