55077089 has 2 divisors, whose sum is σ = 55077090. Its totient is φ = 55077088.

The previous prime is 55077037. The next prime is 55077107. The reversal of 55077089 is 98077055.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54982225 + 94864 = 7415^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 55077089 - 2¹⁶ = 55011553 is a prime.

It is not a weakly prime, because it can be changed into another prime (55077289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27538544 + 27538545.

It is an arithmetic number, because the mean of its divisors is an integer number (27538545).

Almost surely, 2^55077089 is an apocalyptic number.

It is an amenable number.

55077089 is a deficient number, since it is larger than the sum of its proper divisors (1).

55077089 is an equidigital number, since it uses as much as digits as its factorization.

55077089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88200, while the sum is 41.

The square root of 55077089 is about 7421.3940065193. The cubic root of 55077089 is about 380.4728393731.

The spelling of 55077089 in words is "fifty-five million, seventy-seven thousand, eighty-nine".