255305798601 has 16 divisors (see below), whose sum is σ = 411921961344. Its totient is φ = 137307320064.

The previous prime is 255305798543. The next prime is 255305798617. The reversal of 255305798601 is 106897503552.

It is a happy number.

It is not a de Polignac number, because 255305798601 - 2⁶ = 255305798537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255305797601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357570790 + ... + 357571503.

It is an arithmetic number, because the mean of its divisors is an integer number (25745122584).

Almost surely, 2^255305798601 is an apocalyptic number.

255305798601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

255305798601 is a deficient number, since it is larger than the sum of its proper divisors (156616162743).

255305798601 is a wasteful number, since it uses less digits than its factorization.

255305798601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715142320.

The product of its (nonzero) digits is 2268000, while the sum is 51.

The spelling of 255305798601 in words is "two hundred fifty-five billion, three hundred five million, seven hundred ninety-eight thousand, six hundred one".