255570481 has 2 divisors, whose sum is σ = 255570482. Its totient is φ = 255570480.

The previous prime is 255570473. The next prime is 255570493. The reversal of 255570481 is 184075552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155750400 + 99820081 = 12480^2 + 9991^2 .

It is a cyclic number.

It is not a de Polignac number, because 255570481 - 2³ = 255570473 is a prime.

It is a super-2 number, since 2×255570481² = 130632541517142722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 255570481.

It is not a weakly prime, because it can be changed into another prime (255570431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127785240 + 127785241.

It is an arithmetic number, because the mean of its divisors is an integer number (127785241).

Almost surely, 2^255570481 is an apocalyptic number.

It is an amenable number.

255570481 is a deficient number, since it is larger than the sum of its proper divisors (1).

255570481 is an equidigital number, since it uses as much as digits as its factorization.

255570481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56000, while the sum is 37.

The square root of 255570481 is about 15986.5718964386. The cubic root of 255570481 is about 634.6051079806.

The spelling of 255570481 in words is "two hundred fifty-five million, five hundred seventy thousand, four hundred eighty-one".