55805748 has 12 divisors (see below), whose sum is σ = 130213440. Its totient is φ = 18601912.

The previous prime is 55805723. The next prime is 55805753. The reversal of 55805748 is 84750855.

55805748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55805748² = 6228563019679008, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2325228 + ... + 2325251.

It is an arithmetic number, because the mean of its divisors is an integer number (10851120).

Almost surely, 2^55805748 is an apocalyptic number.

It is an amenable number.

55805748 is an abundant number, since it is smaller than the sum of its proper divisors (74407692).

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

55805748 is a wasteful number, since it uses less digits than its factorization.

55805748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650486 (or 4650484 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 42.

The square root of 55805748 is about 7470.3244909442. The cubic root of 55805748 is about 382.1433541804.

The spelling of 55805748 in words is "fifty-five million, eight hundred five thousand, seven hundred forty-eight".