1256363056 has 40 divisors (see below), whose sum is σ = 2711857680. Its totient is φ = 559862016.

The previous prime is 1256362999. The next prime is 1256363081. The reversal of 1256363056 is 6503636521.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98110 + ... + 110173.

It is an arithmetic number, because the mean of its divisors is an integer number (67796442).

Almost surely, 2^1256363056 is an apocalyptic number.

1256363056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1256363056 is an abundant number, since it is smaller than the sum of its proper divisors (1455494624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1256363056 is a wasteful number, since it uses less digits than its factorization.

1256363056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208333 (or 208327 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 1256363056 is about 35445.2120320926. The cubic root of 1256363056 is about 1079.0420907313.

Adding to 1256363056 its reverse (6503636521), we get a palindrome (7759999577).

The spelling of 1256363056 in words is "one billion, two hundred fifty-six million, three hundred sixty-three thousand, fifty-six".