255620789673 has 8 divisors (see below), whose sum is σ = 341481901536. Its totient is φ = 170086768800.

The previous prime is 255620789659. The next prime is 255620789759. The reversal of 255620789673 is 376987026552.

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

It is not a de Polignac number, because 255620789673 - 2⁹ = 255620789161 is a prime.

It is a super-2 number, since 2×255620789673² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (255620789603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81770923 + ... + 81774048.

It is an arithmetic number, because the mean of its divisors is an integer number (42685237692).

Almost surely, 2^255620789673 is an apocalyptic number.

It is an amenable number.

255620789673 is a deficient number, since it is larger than the sum of its proper divisors (85861111863).

255620789673 is a wasteful number, since it uses less digits than its factorization.

255620789673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163545495.

The product of its (nonzero) digits is 38102400, while the sum is 60.

The spelling of 255620789673 in words is "two hundred fifty-five billion, six hundred twenty million, seven hundred eighty-nine thousand, six hundred seventy-three".