255746537 has 2 divisors, whose sum is σ = 255746538. Its totient is φ = 255746536.

The previous prime is 255746507. The next prime is 255746539. The reversal of 255746537 is 735647552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183087961 + 72658576 = 13531^2 + 8524^2 .

It is a cyclic number.

It is not a de Polignac number, because 255746537 - 2²⁴ = 238969321 is a prime.

Together with 255746539, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255746539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127873268 + 127873269.

It is an arithmetic number, because the mean of its divisors is an integer number (127873269).

Almost surely, 2^255746537 is an apocalyptic number.

It is an amenable number.

255746537 is a deficient number, since it is larger than the sum of its proper divisors (1).

255746537 is an equidigital number, since it uses as much as digits as its factorization.

255746537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 882000, while the sum is 44.

The square root of 255746537 is about 15992.0773197230. The cubic root of 255746537 is about 634.7507956349.

It can be divided in two parts, 2557 and 46537, that added together give a palindrome (49094).

The spelling of 255746537 in words is "two hundred fifty-five million, seven hundred forty-six thousand, five hundred thirty-seven".