55089757 has 2 divisors, whose sum is σ = 55089758. Its totient is φ = 55089756.

The previous prime is 55089733. The next prime is 55089787. The reversal of 55089757 is 75798055.

55089757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30349081 + 24740676 = 5509^2 + 4974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55089757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55089787) by changing a digit.

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 as a sum of consecutive naturals, namely, 27544878 + 27544879.

It is an arithmetic number, because the mean of its divisors is an integer number (27544879).

Almost surely, 2^55089757 is an apocalyptic number.

It is an amenable number.

55089757 is a deficient number, since it is larger than the sum of its proper divisors (1).

55089757 is an equidigital number, since it uses as much as digits as its factorization.

55089757 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441000, while the sum is 46.

The square root of 55089757 is about 7422.2474359186. The cubic root of 55089757 is about 380.5020073419.

The spelling of 55089757 in words is "fifty-five million, eighty-nine thousand, seven hundred fifty-seven".