55863380 has 24 divisors (see below), whose sum is σ = 117725832. Its totient is φ = 22266752.

The previous prime is 55863359. The next prime is 55863413. The reversal of 55863380 is 8336855.

It can be written as a sum of positive squares in 4 ways, for example, as 9132484 + 46730896 = 3022^2 + 6836^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 1094 + ... + 10626.

It is an arithmetic number, because the mean of its divisors is an integer number (4905243).

Almost surely, 2^55863380 is an apocalyptic number.

It is an amenable number.

55863380 is an abundant number, since it is smaller than the sum of its proper divisors (61862452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55863380 is a wasteful number, since it uses less digits than its factorization.

55863380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9835 (or 9833 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 55863380 is about 7474.1808915760. The cubic root of 55863380 is about 382.2748586070.

The spelling of 55863380 in words is "fifty-five million, eight hundred sixty-three thousand, three hundred eighty".