55503686 has 8 divisors (see below), whose sum is σ = 95149200. Its totient is φ = 23787288.

The previous prime is 55503683. The next prime is 55503697. The reversal of 55503686 is 68630555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55503683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1982261 + ... + 1982288.

It is an arithmetic number, because the mean of its divisors is an integer number (11893650).

Almost surely, 2^55503686 is an apocalyptic number.

55503686 is a deficient number, since it is larger than the sum of its proper divisors (39645514).

55503686 is a wasteful number, since it uses less digits than its factorization.

55503686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964558.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 55503686 is about 7450.0795968902. The cubic root of 55503686 is about 381.4526255697.

The spelling of 55503686 in words is "fifty-five million, five hundred three thousand, six hundred eighty-six".