256675003 has 12 divisors (see below), whose sum is σ = 278389848. Its totient is φ = 236545920.

The previous prime is 256674991. The next prime is 256675049. The reversal of 256675003 is 300576652.

It is not a de Polignac number, because 256675003 - 2¹³ = 256666811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256675003.

It is not an unprimeable number, because it can be changed into a prime (256675063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197251 + ... + 198547.

It is an arithmetic number, because the mean of its divisors is an integer number (23199154).

Almost surely, 2^256675003 is an apocalyptic number.

256675003 is a deficient number, since it is larger than the sum of its proper divisors (21714845).

256675003 is a wasteful number, since it uses less digits than its factorization.

256675003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494 (or 2481 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 256675003 is about 16021.0799573562. The cubic root of 256675003 is about 635.5180041710.

The spelling of 256675003 in words is "two hundred fifty-six million, six hundred seventy-five thousand, three".