1255289696 has 48 divisors (see below), whose sum is σ = 2559449088. Its totient is φ = 605404800.

The previous prime is 1255289681. The next prime is 1255289729. The reversal of 1255289696 is 6969825521.

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 7 ways as a sum of consecutive naturals, for example, 326441 + ... + 330263.

It is an arithmetic number, because the mean of its divisors is an integer number (53321856).

Almost surely, 2^1255289696 is an apocalyptic number.

1255289696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255289696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279724544).

1255289696 is an abundant number, since it is smaller than the sum of its proper divisors (1304159392).

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

1255289696 is a wasteful number, since it uses less digits than its factorization.

1255289696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195 (or 4187 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 53.

The square root of 1255289696 is about 35430.0676826901. The cubic root of 1255289696 is about 1078.7347139207.

The spelling of 1255289696 in words is "one billion, two hundred fifty-five million, two hundred eighty-nine thousand, six hundred ninety-six".