1255744049 has 8 divisors (see below), whose sum is σ = 1519555968. Its totient is φ = 1013037120.

The previous prime is 1255744043. The next prime is 1255744057. The reversal of 1255744049 is 9404475521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255744049 - 2²⁰ = 1254695473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255743997 and 1255744015.

It is not an unprimeable number, because it can be changed into a prime (1255744043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5276117 + ... + 5276354.

It is an arithmetic number, because the mean of its divisors is an integer number (189944496).

Almost surely, 2^1255744049 is an apocalyptic number.

It is an amenable number.

1255744049 is a deficient number, since it is larger than the sum of its proper divisors (263811919).

1255744049 is a wasteful number, since it uses less digits than its factorization.

1255744049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10552495.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 1255744049 is about 35436.4790717137. The cubic root of 1255744049 is about 1078.8648478208.

The spelling of 1255744049 in words is "one billion, two hundred fifty-five million, seven hundred forty-four thousand, forty-nine".