255613573 has 2 divisors, whose sum is σ = 255613574. Its totient is φ = 255613572.

The previous prime is 255613549. The next prime is 255613583. The reversal of 255613573 is 375316552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185422689 + 70190884 = 13617^2 + 8378^2 .

It is a cyclic number.

It is not a de Polignac number, because 255613573 - 2¹³ = 255605381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255613583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127806786 + 127806787.

It is an arithmetic number, because the mean of its divisors is an integer number (127806787).

Almost surely, 2^255613573 is an apocalyptic number.

It is an amenable number.

255613573 is a deficient number, since it is larger than the sum of its proper divisors (1).

255613573 is an equidigital number, since it uses as much as digits as its factorization.

255613573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 37.

The square root of 255613573 is about 15987.9195957448. The cubic root of 255613573 is about 634.6407731148.

It can be divided in two parts, 2556 and 13573, that added together give a square (16129 = 127²).

The spelling of 255613573 in words is "two hundred fifty-five million, six hundred thirteen thousand, five hundred seventy-three".