255561022592 has 24 divisors (see below), whose sum is σ = 509136869115. Its totient is φ = 127777651584.

The previous prime is 255561022579. The next prime is 255561022601. The reversal of 255561022592 is 295220165552.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 127780511296 + 127780511296 = 357464^2 + 357464^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=357464.

It is a super-2 number, since 2×255561022592² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5697083 + ... + 5741765.

Almost surely, 2^255561022592 is an apocalyptic number.

It is an amenable number.

255561022592 is a deficient number, since it is larger than the sum of its proper divisors (253575846523).

255561022592 is an frugal number, since it uses more digits than its factorization.

255561022592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89380 (or 44685 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 44.

The spelling of 255561022592 in words is "two hundred fifty-five billion, five hundred sixty-one million, twenty-two thousand, five hundred ninety-two".