55726648 has 8 divisors (see below), whose sum is σ = 104487480. Its totient is φ = 27863320.

The previous prime is 55726637. The next prime is 55726651. The reversal of 55726648 is 84662755.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3482908 + ... + 3482923.

It is an arithmetic number, because the mean of its divisors is an integer number (13060935).

Almost surely, 2^55726648 is an apocalyptic number.

It is an amenable number.

55726648 is a deficient number, since it is larger than the sum of its proper divisors (48760832).

55726648 is a wasteful number, since it uses less digits than its factorization.

55726648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965837 (or 6965833 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 55726648 is about 7465.0283321632. The cubic root of 55726648 is about 381.9627166814.

The spelling of 55726648 in words is "fifty-five million, seven hundred twenty-six thousand, six hundred forty-eight".