1255281628 has 24 divisors (see below), whose sum is σ = 2268870912. Its totient is φ = 607306224.

The previous prime is 1255281583. The next prime is 1255281637. The reversal of 1255281628 is 8261825521.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15700 + ... + 52507.

It is an arithmetic number, because the mean of its divisors is an integer number (94536288).

Almost surely, 2^1255281628 is an apocalyptic number.

It is an amenable number.

1255281628 is a deficient number, since it is larger than the sum of its proper divisors (1013589284).

1255281628 is a wasteful number, since it uses less digits than its factorization.

1255281628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68361 (or 68359 counting only the distinct ones).

The product of its digits is 76800, while the sum is 40.

The square root of 1255281628 is about 35429.9538244125. The cubic root of 1255281628 is about 1078.7324028339.

The spelling of 1255281628 in words is "one billion, two hundred fifty-five million, two hundred eighty-one thousand, six hundred twenty-eight".