256266548 has 12 divisors (see below), whose sum is σ = 454783392. Its totient is φ = 126328440.

The previous prime is 256266539. The next prime is 256266557. The reversal of 256266548 is 845662652.

It is an interprime number because it is at equal distance from previous prime (256266539) and next prime (256266557).

It is a junction number, because it is equal to n+sod(n) for n = 256266499 and 256266508.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 450890 + ... + 451457.

It is an arithmetic number, because the mean of its divisors is an integer number (37898616).

Almost surely, 2^256266548 is an apocalyptic number.

It is an amenable number.

256266548 is a deficient number, since it is larger than the sum of its proper divisors (198516844).

256266548 is a wasteful number, since it uses less digits than its factorization.

256266548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902422 (or 902420 counting only the distinct ones).

The product of its digits is 691200, while the sum is 44.

The square root of 256266548 is about 16008.3274579201. The cubic root of 256266548 is about 635.1807186048.

The spelling of 256266548 in words is "two hundred fifty-six million, two hundred sixty-six thousand, five hundred forty-eight".