255756548450620 has 96 divisors (see below), whose sum is σ = 614079672192000. Its totient is φ = 87650257641984.

The previous prime is 255756548450603. The next prime is 255756548450639. The reversal of 255756548450620 is 26054845657552.

It is a super-2 number, since 2×255756548450620² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5234559751 + ... + 5234608609.

It is an arithmetic number, because the mean of its divisors is an integer number (6396663252000).

Almost surely, 2^{255756548450620} is an apocalyptic number.

255756548450620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255756548450620 is an abundant number, since it is smaller than the sum of its proper divisors (358323123741380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255756548450620 is a wasteful number, since it uses less digits than its factorization.

255756548450620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64187 (or 64185 counting only the distinct ones).

The product of its (nonzero) digits is 403200000, while the sum is 64.

The spelling of 255756548450620 in words is "two hundred fifty-five trillion, seven hundred fifty-six billion, five hundred forty-eight million, four hundred fifty thousand, six hundred twenty".