255509101 has 2 divisors, whose sum is σ = 255509102. Its totient is φ = 255509100.

The previous prime is 255509083. The next prime is 255509119. The reversal of 255509101 is 101905552.

It is a balanced prime because it is at equal distance from previous prime (255509083) and next prime (255509119).

It can be written as a sum of positive squares in only one way, i.e., 209960100 + 45549001 = 14490^2 + 6749^2 .

It is a cyclic number.

It is not a de Polignac number, because 255509101 - 2⁵ = 255509069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255509101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255509801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127754550 + 127754551.

It is an arithmetic number, because the mean of its divisors is an integer number (127754551).

Almost surely, 2^255509101 is an apocalyptic number.

It is an amenable number.

255509101 is a deficient number, since it is larger than the sum of its proper divisors (1).

255509101 is an equidigital number, since it uses as much as digits as its factorization.

255509101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 255509101 is about 15984.6520450087. The cubic root of 255509101 is about 634.5542998433.

The spelling of 255509101 in words is "two hundred fifty-five million, five hundred nine thousand, one hundred one".