1255621083 has 16 divisors (see below), whose sum is σ = 1762421760. Its totient is φ = 793595264.

The previous prime is 1255621069. The next prime is 1255621093. The reversal of 1255621083 is 3801265521.

It is a cyclic number.

It is not a de Polignac number, because 1255621083 - 2⁹ = 1255620571 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1255621093) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 72723 + ... + 88316.

It is an arithmetic number, because the mean of its divisors is an integer number (110151360).

Almost surely, 2^1255621083 is an apocalyptic number.

1255621083 is a deficient number, since it is larger than the sum of its proper divisors (506800677).

1255621083 is a wasteful number, since it uses less digits than its factorization.

1255621083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161178.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 1255621083 is about 35434.7440092348. The cubic root of 1255621083 is about 1078.8296315080.

The spelling of 1255621083 in words is "one billion, two hundred fifty-five million, six hundred twenty-one thousand, eighty-three".