55882777 has 2 divisors, whose sum is σ = 55882778. Its totient is φ = 55882776.

The previous prime is 55882769. The next prime is 55882787. The reversal of 55882777 is 77728855.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34621456 + 21261321 = 5884^2 + 4611^2 .

It is a cyclic number.

It is not a de Polignac number, because 55882777 - 2³ = 55882769 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 55882777.

It is not a weakly prime, because it can be changed into another prime (55882727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27941388 + 27941389.

It is an arithmetic number, because the mean of its divisors is an integer number (27941389).

Almost surely, 2^55882777 is an apocalyptic number.

It is an amenable number.

55882777 is a deficient number, since it is larger than the sum of its proper divisors (1).

55882777 is an equidigital number, since it uses as much as digits as its factorization.

55882777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1097600, while the sum is 49.

The square root of 55882777 is about 7475.4783793414. The cubic root of 55882777 is about 382.3190982465.

The spelling of 55882777 in words is "fifty-five million, eight hundred eighty-two thousand, seven hundred seventy-seven".