1255776025 has 48 divisors (see below), whose sum is σ = 1881129600. Its totient is φ = 812367360.

The previous prime is 1255776019. The next prime is 1255776037. The reversal of 1255776025 is 5206775521.

It is not a de Polignac number, because 1255776025 - 2¹¹ = 1255773977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 973581 + ... + 974869.

It is an arithmetic number, because the mean of its divisors is an integer number (39190200).

Almost surely, 2^1255776025 is an apocalyptic number.

It is an amenable number.

1255776025 is a deficient number, since it is larger than the sum of its proper divisors (625353575).

1255776025 is a wasteful number, since it uses less digits than its factorization.

1255776025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618 (or 1613 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 1255776025 is about 35436.9302423334. The cubic root of 1255776025 is about 1078.8740050716.

The spelling of 1255776025 in words is "one billion, two hundred fifty-five million, seven hundred seventy-six thousand, twenty-five".