255756557224 has 24 divisors (see below), whose sum is σ = 557836369290. Its totient is φ = 109609952928.

The previous prime is 255756557167. The next prime is 255756557233. The reversal of 255756557224 is 422755657552.

It can be written as a sum of positive squares in only one way, i.e., 250430184900 + 5326372324 = 500430^2 + 72982^2 .

It is a super-2 number, since 2×255756557224² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 326219707 + ... + 326220490.

Almost surely, 2^255756557224 is an apocalyptic number.

It is an amenable number.

255756557224 is an abundant number, since it is smaller than the sum of its proper divisors (302079812066).

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

255756557224 is a wasteful number, since it uses less digits than its factorization.

255756557224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652440217 (or 652440206 counting only the distinct ones).

The product of its digits is 29400000, while the sum is 55.

The spelling of 255756557224 in words is "two hundred fifty-five billion, seven hundred fifty-six million, five hundred fifty-seven thousand, two hundred twenty-four".