55288747 has 2 divisors, whose sum is σ = 55288748. Its totient is φ = 55288746.

The previous prime is 55288741. The next prime is 55288759. The reversal of 55288747 is 74788255.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55288747 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 55288697 and 55288706.

It is not a weakly prime, because it can be changed into another prime (55288741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27644373 + 27644374.

It is an arithmetic number, because the mean of its divisors is an integer number (27644374).

Almost surely, 2^55288747 is an apocalyptic number.

55288747 is a deficient number, since it is larger than the sum of its proper divisors (1).

55288747 is an equidigital number, since it uses as much as digits as its factorization.

55288747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627200, while the sum is 46.

The square root of 55288747 is about 7435.6403221242. The cubic root of 55288747 is about 380.9595945973.

The spelling of 55288747 in words is "fifty-five million, two hundred eighty-eight thousand, seven hundred forty-seven".