55748649 has 8 divisors (see below), whose sum is σ = 81088992. Its totient is φ = 33787040.

The previous prime is 55748639. The next prime is 55748653. The reversal of 55748649 is 94684755.

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 55748649 - 2⁵ = 55748617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55748598 and 55748607.

It is not an unprimeable number, because it can be changed into a prime (55748639) 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, 844644 + ... + 844709.

It is an arithmetic number, because the mean of its divisors is an integer number (10136124).

Almost surely, 2^55748649 is an apocalyptic number.

It is an amenable number.

55748649 is a deficient number, since it is larger than the sum of its proper divisors (25340343).

55748649 is a wasteful number, since it uses less digits than its factorization.

55748649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689367.

The product of its digits is 1209600, while the sum is 48.

The square root of 55748649 is about 7466.5017913344. The cubic root of 55748649 is about 382.0129766340.

The spelling of 55748649 in words is "fifty-five million, seven hundred forty-eight thousand, six hundred forty-nine".