1255255738 has 8 divisors (see below), whose sum is σ = 2054054880. Its totient is φ = 570570780.

The previous prime is 1255255723. The next prime is 1255255783. The reversal of 1255255738 is 8375525521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1255255694 and 1255255703.

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 3 ways as a sum of consecutive naturals, for example, 28528518 + ... + 28528561.

It is an arithmetic number, because the mean of its divisors is an integer number (256756860).

Almost surely, 2^1255255738 is an apocalyptic number.

1255255738 is a deficient number, since it is larger than the sum of its proper divisors (798799142).

1255255738 is a wasteful number, since it uses less digits than its factorization.

1255255738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57057092.

The product of its digits is 420000, while the sum is 43.

The square root of 1255255738 is about 35429.5884537204. The cubic root of 1255255738 is about 1078.7249865502.

The spelling of 1255255738 in words is "one billion, two hundred fifty-five million, two hundred fifty-five thousand, seven hundred thirty-eight".