255916541 has 2 divisors, whose sum is σ = 255916542. Its totient is φ = 255916540.

The previous prime is 255916519. The next prime is 255916543. The reversal of 255916541 is 145619552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246019225 + 9897316 = 15685^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 255916541 - 2⁶ = 255916477 is a prime.

Together with 255916543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 255916495 and 255916504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255916543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127958270 + 127958271.

It is an arithmetic number, because the mean of its divisors is an integer number (127958271).

Almost surely, 2^255916541 is an apocalyptic number.

It is an amenable number.

255916541 is a deficient number, since it is larger than the sum of its proper divisors (1).

255916541 is an equidigital number, since it uses as much as digits as its factorization.

255916541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 38.

The square root of 255916541 is about 15997.3916936481. The cubic root of 255916541 is about 634.8914117748.

The spelling of 255916541 in words is "two hundred fifty-five million, nine hundred sixteen thousand, five hundred forty-one".