55957477 has 2 divisors, whose sum is σ = 55957478. Its totient is φ = 55957476.

The previous prime is 55957471. The next prime is 55957483. The reversal of 55957477 is 77475955.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (55957471) and next prime (55957483).

It can be written as a sum of positive squares in only one way, i.e., 29062881 + 26894596 = 5391^2 + 5186^2 .

It is a cyclic number.

It is not a de Polignac number, because 55957477 - 2¹¹ = 55955429 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55957477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55957471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27978738 + 27978739.

It is an arithmetic number, because the mean of its divisors is an integer number (27978739).

Almost surely, 2^55957477 is an apocalyptic number.

It is an amenable number.

55957477 is a deficient number, since it is larger than the sum of its proper divisors (1).

55957477 is an equidigital number, since it uses as much as digits as its factorization.

55957477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1543500, while the sum is 49.

The square root of 55957477 is about 7480.4730465392. The cubic root of 55957477 is about 382.4893744467.

The spelling of 55957477 in words is "fifty-five million, nine hundred fifty-seven thousand, four hundred seventy-seven".