55182709 has 2 divisors, whose sum is σ = 55182710. Its totient is φ = 55182708.

The previous prime is 55182703. The next prime is 55182733. The reversal of 55182709 is 90728155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49660209 + 5522500 = 7047^2 + 2350^2 .

It is a cyclic number.

It is not a de Polignac number, because 55182709 - 2¹⁷ = 55051637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55182703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27591354 + 27591355.

It is an arithmetic number, because the mean of its divisors is an integer number (27591355).

Almost surely, 2^55182709 is an apocalyptic number.

It is an amenable number.

55182709 is a deficient number, since it is larger than the sum of its proper divisors (1).

55182709 is an equidigital number, since it uses as much as digits as its factorization.

55182709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 55182709 is about 7428.5065120790. The cubic root of 55182709 is about 380.7158919245.

The spelling of 55182709 in words is "fifty-five million, one hundred eighty-two thousand, seven hundred nine".