255547325493 has 10 divisors (see below), whose sum is σ = 381743535734. Its totient is φ = 170364883608.

The previous prime is 255547325479. The next prime is 255547325507. The reversal of 255547325493 is 394523745552.

255547325493 is a `hidden beast` number, since 2 + 5 + 5 + 547 + 3 + 2 + 5 + 4 + 93 = 666.

It is an interprime number because it is at equal distance from previous prime (255547325479) and next prime (255547325507).

It can be written as a sum of positive squares in only one way, i.e., 251139295044 + 4408030449 = 501138^2 + 66393^2 .

It is not a de Polignac number, because 255547325493 - 2¹³ = 255547317301 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 (255547325393) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1577452546 + ... + 1577452707.

Almost surely, 2^255547325493 is an apocalyptic number.

It is an amenable number.

255547325493 is a deficient number, since it is larger than the sum of its proper divisors (126196210241).

255547325493 is an equidigital number, since it uses as much as digits as its factorization.

255547325493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154905265 (or 3154905256 counting only the distinct ones).

The product of its digits is 22680000, while the sum is 54.

The spelling of 255547325493 in words is "two hundred fifty-five billion, five hundred forty-seven million, three hundred twenty-five thousand, four hundred ninety-three".