55894897 has 2 divisors, whose sum is σ = 55894898. Its totient is φ = 55894896.

The previous prime is 55894879. The next prime is 55894933. The reversal of 55894897 is 79849855.

Together with previous prime (55894879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30129121 + 25765776 = 5489^2 + 5076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55894897 is a prime.

It is not a weakly prime, because it can be changed into another prime (55894837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27947448 + 27947449.

It is an arithmetic number, because the mean of its divisors is an integer number (27947449).

Almost surely, 2^55894897 is an apocalyptic number.

It is an amenable number.

55894897 is a deficient number, since it is larger than the sum of its proper divisors (1).

55894897 is an equidigital number, since it uses as much as digits as its factorization.

55894897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 55.

The square root of 55894897 is about 7476.2889858539. The cubic root of 55894897 is about 382.3467356974.

It can be divided in two parts, 5589489 and 7, that added together give a triangular number (5589496 = T₃₃₄₃).

The spelling of 55894897 in words is "fifty-five million, eight hundred ninety-four thousand, eight hundred ninety-seven".