255065197 has 4 divisors (see below), whose sum is σ = 255182976. Its totient is φ = 254947420.

The previous prime is 255065143. The next prime is 255065219. The reversal of 255065197 is 791560552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255065197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255005197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55579 + ... + 59992.

It is an arithmetic number, because the mean of its divisors is an integer number (63795744).

Almost surely, 2^255065197 is an apocalyptic number.

It is an amenable number.

255065197 is a deficient number, since it is larger than the sum of its proper divisors (117779).

255065197 is a wasteful number, since it uses less digits than its factorization.

255065197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117778.

The product of its (nonzero) digits is 94500, while the sum is 40.

The square root of 255065197 is about 15970.7606894600. The cubic root of 255065197 is about 634.1866097780.

It can be divided in two parts, 25506 and 5197, that added together give a palindrome (30703).

The spelling of 255065197 in words is "two hundred fifty-five million, sixty-five thousand, one hundred ninety-seven".