1255228799 has 4 divisors (see below), whose sum is σ = 1369340520. Its totient is φ = 1141117080.

The previous prime is 1255228783. The next prime is 1255228823. The reversal of 1255228799 is 9978225521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1255228799 - 2⁴ = 1255228783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255228759) 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 3 ways as a sum of consecutive naturals, for example, 57055844 + ... + 57055865.

It is an arithmetic number, because the mean of its divisors is an integer number (342335130).

Almost surely, 2^1255228799 is an apocalyptic number.

1255228799 is a deficient number, since it is larger than the sum of its proper divisors (114111721).

1255228799 is a wasteful number, since it uses less digits than its factorization.

1255228799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114111720.

The product of its digits is 907200, while the sum is 50.

The square root of 1255228799 is about 35429.2082750942. The cubic root of 1255228799 is about 1078.7172696685.

The spelling of 1255228799 in words is "one billion, two hundred fifty-five million, two hundred twenty-eight thousand, seven hundred ninety-nine".