255247469568 has 660 divisors, whose sum is σ = 955065220032. Its totient is φ = 67304079360.

The previous prime is 255247469539. The next prime is 255247469579. The reversal of 255247469568 is 865964742552.

255247469568 is a `hidden beast` number, since 2 + 5 + 5 + 2 + 4 + 7 + 4 + 69 + 568 = 666.

It is a super-2 number, since 2×255247469568² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 52832913 + ... + 52837743.

Almost surely, 2^255247469568 is an apocalyptic number.

255247469568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255247469568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (477532610016).

255247469568 is an abundant number, since it is smaller than the sum of its proper divisors (699817750464).

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

255247469568 is a wasteful number, since it uses less digits than its factorization.

255247469568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4890 (or 4856 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 63.

The spelling of 255247469568 in words is "two hundred fifty-five billion, two hundred forty-seven million, four hundred sixty-nine thousand, five hundred sixty-eight".