1255260395425 has 6 divisors (see below), whose sum is σ = 1556522890358. Its totient is φ = 1004208316320.

The previous prime is 1255260395387. The next prime is 1255260395437. The reversal of 1255260395425 is 5245930625521.

It can be written as a sum of positive squares in 3 ways, for example, as 6150166929 + 1249110228496 = 78423^2 + 1117636^2 .

It is not a de Polignac number, because 1255260395425 - 2⁷ = 1255260395297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25105207884 + ... + 25105207933.

Almost surely, 2^{1255260395425} is an apocalyptic number.

It is an amenable number.

1255260395425 is a deficient number, since it is larger than the sum of its proper divisors (301262494933).

1255260395425 is an equidigital number, since it uses as much as digits as its factorization.

1255260395425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50210415827 (or 50210415822 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 49.

The spelling of 1255260395425 in words is "one trillion, two hundred fifty-five billion, two hundred sixty million, three hundred ninety-five thousand, four hundred twenty-five".