255347397 has 20 divisors (see below), whose sum is σ = 391758796. Its totient is φ = 165628800.

The previous prime is 255347387. The next prime is 255347419. The reversal of 255347397 is 793743552.

255347397 is a `hidden beast` number, since 2 + 553 + 4 + 7 + 3 + 97 = 666.

255347397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 197374401 + 57972996 = 14049^2 + 7614^2 .

It is not a de Polignac number, because 255347397 - 2⁶ = 255347333 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 (255347377) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39604 + ... + 45597.

Almost surely, 2^255347397 is an apocalyptic number.

255347397 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

255347397 is a deficient number, since it is larger than the sum of its proper divisors (136411399).

255347397 is an equidigital number, since it uses as much as digits as its factorization.

255347397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85250 (or 85241 counting only the distinct ones).

The product of its digits is 793800, while the sum is 45.

The square root of 255347397 is about 15979.5931425052. The cubic root of 255347397 is about 634.4204081711.

The spelling of 255347397 in words is "two hundred fifty-five million, three hundred forty-seven thousand, three hundred ninety-seven".