55241780 has 24 divisors (see below), whose sum is σ = 126554400. Its totient is φ = 20087840.

The previous prime is 55241731. The next prime is 55241819. The reversal of 55241780 is 8714255.

55241780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 125330 + ... + 125769.

It is an arithmetic number, because the mean of its divisors is an integer number (5273100).

Almost surely, 2^55241780 is an apocalyptic number.

It is an amenable number.

55241780 is an abundant number, since it is smaller than the sum of its proper divisors (71312620).

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

55241780 is a wasteful number, since it uses less digits than its factorization.

55241780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251119 (or 251117 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 55241780 is about 7432.4814160548. The cubic root of 55241780 is about 380.8516907945.

The spelling of 55241780 in words is "fifty-five million, two hundred forty-one thousand, seven hundred eighty".