55520768 has 20 divisors (see below), whose sum is σ = 110934120. Its totient is φ = 27760128.

The previous prime is 55520767. The next prime is 55520779. The reversal of 55520768 is 86702555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55520767) 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 as a sum of consecutive naturals, namely, 53708 + ... + 54731.

It is an arithmetic number, because the mean of its divisors is an integer number (5546706).

Almost surely, 2^55520768 is an apocalyptic number.

It is an amenable number.

55520768 is a deficient number, since it is larger than the sum of its proper divisors (55413352).

55520768 is an equidigital number, since it uses as much as digits as its factorization.

55520768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108457 (or 108441 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 55520768 is about 7451.2259394008. The cubic root of 55520768 is about 381.4917539344.

The spelling of 55520768 in words is "fifty-five million, five hundred twenty thousand, seven hundred sixty-eight".