255513420727 has 2 divisors, whose sum is σ = 255513420728. Its totient is φ = 255513420726.

The previous prime is 255513420671. The next prime is 255513420733. The reversal of 255513420727 is 727024315552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255513420727 - 2⁷ = 255513420599 is a prime.

It is a super-2 number, since 2×255513420727² (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 (255513120727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127756710363 + 127756710364.

It is an arithmetic number, because the mean of its divisors is an integer number (127756710364).

Almost surely, 2^255513420727 is an apocalyptic number.

255513420727 is a deficient number, since it is larger than the sum of its proper divisors (1).

255513420727 is an equidigital number, since it uses as much as digits as its factorization.

255513420727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588000, while the sum is 43.

The spelling of 255513420727 in words is "two hundred fifty-five billion, five hundred thirteen million, four hundred twenty thousand, seven hundred twenty-seven".