1026255257 has 8 divisors (see below), whose sum is σ = 1034089056. Its totient is φ = 1018451232.

The previous prime is 1026255221. The next prime is 1026255289. The reversal of 1026255257 is 7525526201.

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 1026255257 - 2⁸ = 1026255001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1026255757) 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 7 ways as a sum of consecutive naturals, for example, 64358 + ... + 78704.

It is an arithmetic number, because the mean of its divisors is an integer number (129261132).

Almost surely, 2^1026255257 is an apocalyptic number.

It is an amenable number.

1026255257 is a deficient number, since it is larger than the sum of its proper divisors (7833799).

1026255257 is a wasteful number, since it uses less digits than its factorization.

1026255257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14887.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 1026255257 is about 32035.2190097087. The cubic root of 1026255257 is about 1008.6762571858.

The spelling of 1026255257 in words is "one billion, twenty-six million, two hundred fifty-five thousand, two hundred fifty-seven".