55746287 has 2 divisors, whose sum is σ = 55746288. Its totient is φ = 55746286.

The previous prime is 55746283. The next prime is 55746329. The reversal of 55746287 is 78264755.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55746287 - 2² = 55746283 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55746283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27873143 + 27873144.

It is an arithmetic number, because the mean of its divisors is an integer number (27873144).

Almost surely, 2^55746287 is an apocalyptic number.

55746287 is a deficient number, since it is larger than the sum of its proper divisors (1).

55746287 is an equidigital number, since it uses as much as digits as its factorization.

55746287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 470400, while the sum is 44.

The square root of 55746287 is about 7466.3436165234. The cubic root of 55746287 is about 382.0075814217.

The spelling of 55746287 in words is "fifty-five million, seven hundred forty-six thousand, two hundred eighty-seven".