55457377 has 2 divisors, whose sum is σ = 55457378. Its totient is φ = 55457376.

The previous prime is 55457329. The next prime is 55457387. The reversal of 55457377 is 77375455.

55457377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29691601 + 25765776 = 5449^2 + 5076^2 .

It is a cyclic number.

It is not a de Polignac number, because 55457377 - 2⁷ = 55457249 is a prime.

It is not a weakly prime, because it can be changed into another prime (55457387) 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, 27728688 + 27728689.

It is an arithmetic number, because the mean of its divisors is an integer number (27728689).

Almost surely, 2^55457377 is an apocalyptic number.

It is an amenable number.

55457377 is a deficient number, since it is larger than the sum of its proper divisors (1).

55457377 is an equidigital number, since it uses as much as digits as its factorization.

55457377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 514500, while the sum is 43.

The square root of 55457377 is about 7446.9709949751. The cubic root of 55457377 is about 381.3465088654.

The spelling of 55457377 in words is "fifty-five million, four hundred fifty-seven thousand, three hundred seventy-seven".