1255817325 has 48 divisors (see below), whose sum is σ = 2421372800. Its totient is φ = 574076160.

The previous prime is 1255817317. The next prime is 1255817359. The reversal of 1255817325 is 5237185521.

It is not a de Polignac number, because 1255817325 - 2³ = 1255817317 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1317 + ... + 50133.

Almost surely, 2^1255817325 is an apocalyptic number.

1255817325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255817325 is a deficient number, since it is larger than the sum of its proper divisors (1165555475).

1255817325 is an equidigital number, since it uses as much as digits as its factorization.

1255817325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48851 (or 48832 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 1255817325 is about 35437.5129629606. The cubic root of 1255817325 is about 1078.8858322889.

The spelling of 1255817325 in words is "one billion, two hundred fifty-five million, eight hundred seventeen thousand, three hundred twenty-five".