55988297 has 2 divisors, whose sum is σ = 55988298. Its totient is φ = 55988296.

The previous prime is 55988291. The next prime is 55988321. The reversal of 55988297 is 79288955.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49857721 + 6130576 = 7061^2 + 2476^2 .

It is a cyclic number.

It is not a de Polignac number, because 55988297 - 2⁴ = 55988281 is a prime.

It is not a weakly prime, because it can be changed into another prime (55988291) 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, 27994148 + 27994149.

It is an arithmetic number, because the mean of its divisors is an integer number (27994149).

Almost surely, 2^55988297 is an apocalyptic number.

It is an amenable number.

55988297 is a deficient number, since it is larger than the sum of its proper divisors (1).

55988297 is an equidigital number, since it uses as much as digits as its factorization.

55988297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 53.

The square root of 55988297 is about 7482.5327931122. The cubic root of 55988297 is about 382.5595834672.

The spelling of 55988297 in words is "fifty-five million, nine hundred eighty-eight thousand, two hundred ninety-seven".