255513420709 has 8 divisors (see below), whose sum is σ = 257934244032. Its totient is φ = 253102185600.

The previous prime is 255513420671. The next prime is 255513420727. The reversal of 255513420709 is 907024315552.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255513420709 - 2¹⁹ = 255512896421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255513420779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2343499 + ... + 2450104.

It is an arithmetic number, because the mean of its divisors is an integer number (32241780504).

Almost surely, 2^255513420709 is an apocalyptic number.

It is an amenable number.

255513420709 is a deficient number, since it is larger than the sum of its proper divisors (2420823323).

255513420709 is a wasteful number, since it uses less digits than its factorization.

255513420709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794107.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 255513420709 in words is "two hundred fifty-five billion, five hundred thirteen million, four hundred twenty thousand, seven hundred nine".