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55897 is a prime number
BaseRepresentation
bin1101101001011001
32211200021
431221121
53242042
61110441
7321652
oct155131
984607
1055897
1138aa6
1228421
131c59a
1416529
1511867
hexda59

55897 has 2 divisors, whose sum is σ = 55898. Its totient is φ = 55896.

The previous prime is 55889. The next prime is 55901. The reversal of 55897 is 79855.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48841 + 7056 = 221^2 + 84^2 .

It is a cyclic number.

It is not a de Polignac number, because 55897 - 23 = 55889 is a prime.

It is not a weakly prime, because it can be changed into another prime (55807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27948 + 27949.

It is an arithmetic number, because the mean of its divisors is an integer number (27949).

255897 is an apocalyptic number.

55897 is the 137-th hex number.

It is an amenable number.

55897 is a deficient number, since it is larger than the sum of its proper divisors (1).

55897 is an equidigital number, since it uses as much as digits as its factorization.

55897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 55897 is about 236.4254639416. The cubic root of 55897 is about 38.2351530799.

The spelling of 55897 in words is "fifty-five thousand, eight hundred ninety-seven".