55744009 has 2 divisors, whose sum is σ = 55744010. Its totient is φ = 55744008.

The previous prime is 55743991. The next prime is 55744027. The reversal of 55744009 is 90044755.

It is a balanced prime because it is at equal distance from previous prime (55743991) and next prime (55744027).

It can be written as a sum of positive squares in only one way, i.e., 40998409 + 14745600 = 6403^2 + 3840^2 .

It is a cyclic number.

It is not a de Polignac number, because 55744009 - 2⁵ = 55743977 is a prime.

It is not a weakly prime, because it can be changed into another prime (55744049) 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, 27872004 + 27872005.

It is an arithmetic number, because the mean of its divisors is an integer number (27872005).

Almost surely, 2^55744009 is an apocalyptic number.

It is an amenable number.

55744009 is a deficient number, since it is larger than the sum of its proper divisors (1).

55744009 is an equidigital number, since it uses as much as digits as its factorization.

55744009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 55744009 is about 7466.1910637218. The cubic root of 55744009 is about 382.0023779354.

The spelling of 55744009 in words is "fifty-five million, seven hundred forty-four thousand, nine".