1255842593 has 6 divisors (see below), whose sum is σ = 1300641654. Its totient is φ = 1212536864.

The previous prime is 1255842583. The next prime is 1255842613. The reversal of 1255842593 is 3952485521.

It can be written as a sum of positive squares in 3 ways, for example, as 506835169 + 749007424 = 22513^2 + 27368^2 .

It is not a de Polignac number, because 1255842593 - 2¹⁶ = 1255777057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255842503) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 745796 + ... + 747477.

It is an arithmetic number, because the mean of its divisors is an integer number (216773609).

Almost surely, 2^1255842593 is an apocalyptic number.

It is an amenable number.

1255842593 is a deficient number, since it is larger than the sum of its proper divisors (44799061).

1255842593 is an equidigital number, since it uses as much as digits as its factorization.

1255842593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493331 (or 1493302 counting only the distinct ones).

The product of its digits is 432000, while the sum is 44.

The square root of 1255842593 is about 35437.8694760280. The cubic root of 1255842593 is about 1078.8930682416.

The spelling of 1255842593 in words is "one billion, two hundred fifty-five million, eight hundred forty-two thousand, five hundred ninety-three".