55802897 has 2 divisors, whose sum is σ = 55802898. Its totient is φ = 55802896.

The previous prime is 55802837. The next prime is 55802909. The reversal of 55802897 is 79820855.

55802897 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., 43349056 + 12453841 = 6584^2 + 3529^2 .

It is a cyclic number.

It is not a de Polignac number, because 55802897 - 2⁶ = 55802833 is a prime.

It is a super-2 number, since 2×55802897² = 6227926627185218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55802837) 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, 27901448 + 27901449.

It is an arithmetic number, because the mean of its divisors is an integer number (27901449).

Almost surely, 2^55802897 is an apocalyptic number.

It is an amenable number.

55802897 is a deficient number, since it is larger than the sum of its proper divisors (1).

55802897 is an equidigital number, since it uses as much as digits as its factorization.

55802897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 44.

The square root of 55802897 is about 7470.1336668095. The cubic root of 55802897 is about 382.1368464323.

The spelling of 55802897 in words is "fifty-five million, eight hundred two thousand, eight hundred ninety-seven".