1255055505 has 16 divisors (see below), whose sum is σ = 2190642624. Its totient is φ = 608511680.

The previous prime is 1255055497. The next prime is 1255055521. The reversal of 1255055505 is 5055505521.

It is not a de Polignac number, because 1255055505 - 2³ = 1255055497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3803034 + ... + 3803363.

It is an arithmetic number, because the mean of its divisors is an integer number (136915164).

Almost surely, 2^1255055505 is an apocalyptic number.

1255055505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255055505 is a deficient number, since it is larger than the sum of its proper divisors (935587119).

1255055505 is a wasteful number, since it uses less digits than its factorization.

1255055505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606416.

The product of its (nonzero) digits is 31250, while the sum is 33.

The square root of 1255055505 is about 35426.7625531885. The cubic root of 1255055505 is about 1078.6676256424.

The spelling of 1255055505 in words is "one billion, two hundred fifty-five million, fifty-five thousand, five hundred five".