1255384435 has 16 divisors (see below), whose sum is σ = 1595496960. Its totient is φ = 945600480.

The previous prime is 1255384391. The next prime is 1255384439. The reversal of 1255384435 is 5344835521.

It is not a de Polignac number, because 1255384435 - 2¹⁵ = 1255351667 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255384439) 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, 25051 + ... + 56020.

It is an arithmetic number, because the mean of its divisors is an integer number (99718560).

Almost surely, 2^1255384435 is an apocalyptic number.

1255384435 is a deficient number, since it is larger than the sum of its proper divisors (340112525).

1255384435 is a wasteful number, since it uses less digits than its factorization.

1255384435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81258.

The product of its digits is 288000, while the sum is 40.

The square root of 1255384435 is about 35431.4046433387. The cubic root of 1255384435 is about 1078.7618512626.

The spelling of 1255384435 in words is "one billion, two hundred fifty-five million, three hundred eighty-four thousand, four hundred thirty-five".