255217277952 has 1386 divisors, whose sum is σ = 1005581921208. Its totient is φ = 63350636544.

The previous prime is 255217277941. The next prime is 255217277957. The reversal of 255217277952 is 259772712552.

It is a happy number.

255217277952 is a `hidden beast` number, since 2 + 5 + 521 + 7 + 27 + 7 + 95 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (6174000) is a multiple of the sum of its prime divisors (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255217277957) by changing a digit.

It is a polite number, since it can be written in 125 ways as a sum of consecutive naturals, for example, 15012781048 + ... + 15012781064.

Almost surely, 2^255217277952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 255217277952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502790960604).

255217277952 is an abundant number, since it is smaller than the sum of its proper divisors (750364643256).

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

255217277952 is an equidigital number, since it uses as much as digits as its factorization.

255217277952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 42 counting only the distinct ones).

The product of its digits is 6174000, while the sum is 54.

The spelling of 255217277952 in words is "two hundred fifty-five billion, two hundred seventeen million, two hundred seventy-seven thousand, nine hundred fifty-two".