255544540973 has 2 divisors, whose sum is σ = 255544540974. Its totient is φ = 255544540972.

The previous prime is 255544540963. The next prime is 255544541051. The reversal of 255544540973 is 379045445552.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141464749924 + 114079791049 = 376118^2 + 337757^2 .

It is a cyclic number.

It is not a de Polignac number, because 255544540973 - 2⁸ = 255544540717 is a prime.

It is a super-2 number, since 2×255544540973² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255544540963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127772270486 + 127772270487.

It is an arithmetic number, because the mean of its divisors is an integer number (127772270487).

Almost surely, 2^255544540973 is an apocalyptic number.

It is an amenable number.

255544540973 is a deficient number, since it is larger than the sum of its proper divisors (1).

255544540973 is an equidigital number, since it uses as much as digits as its factorization.

255544540973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120000, while the sum is 53.

The spelling of 255544540973 in words is "two hundred fifty-five billion, five hundred forty-four million, five hundred forty thousand, nine hundred seventy-three".