1509055245673 has 2 divisors, whose sum is σ = 1509055245674. Its totient is φ = 1509055245672.

The previous prime is 1509055245661. The next prime is 1509055245679. The reversal of 1509055245673 is 3765425509051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903168923904 + 605886321769 = 950352^2 + 778387^2 .

It is a cyclic number.

It is not a de Polignac number, because 1509055245673 - 2²¹ = 1509053148521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1509055245673.

It is not a weakly prime, because it can be changed into another prime (1509055245679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 754527622836 + 754527622837.

It is an arithmetic number, because the mean of its divisors is an integer number (754527622837).

Almost surely, 2^{1509055245673} is an apocalyptic number.

It is an amenable number.

1509055245673 is a deficient number, since it is larger than the sum of its proper divisors (1).

1509055245673 is an equidigital number, since it uses as much as digits as its factorization.

1509055245673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670000, while the sum is 52.

The spelling of 1509055245673 in words is "one trillion, five hundred nine billion, fifty-five million, two hundred forty-five thousand, six hundred seventy-three".