1259264256 has 72 divisors (see below), whose sum is σ = 3548661984. Its totient is φ = 395059200.

The previous prime is 1259264249. The next prime is 1259264267. The reversal of 1259264256 is 6524629521.

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, 35170 + ... + 61281.

It is an arithmetic number, because the mean of its divisors is an integer number (49286972).

Almost surely, 2^1259264256 is an apocalyptic number.

1259264256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1259264256 is an abundant number, since it is smaller than the sum of its proper divisors (2289397728).

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

1259264256 is an equidigital number, since it uses as much as digits as its factorization.

1259264256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96487 (or 96473 counting only the distinct ones).

The product of its digits is 259200, while the sum is 42.

The square root of 1259264256 is about 35486.1135657316. The cubic root of 1259264256 is about 1079.8720287328.

The spelling of 1259264256 in words is "one billion, two hundred fifty-nine million, two hundred sixty-four thousand, two hundred fifty-six".