1255287792 has 80 divisors (see below), whose sum is σ = 3572807040. Its totient is φ = 376608000.

The previous prime is 1255287751. The next prime is 1255287793. The reversal of 1255287792 is 2977825521.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255287793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41559 + ... + 65097.

It is an arithmetic number, because the mean of its divisors is an integer number (44660088).

Almost surely, 2^1255287792 is an apocalyptic number.

1255287792 is a gapful number since it is divisible by the number (12) 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 1255287792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786403520).

1255287792 is an abundant number, since it is smaller than the sum of its proper divisors (2317519248).

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

1255287792 is a wasteful number, since it uses less digits than its factorization.

1255287792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23662 (or 23656 counting only the distinct ones).

The product of its digits is 705600, while the sum is 48.

The square root of 1255287792 is about 35430.0408128469. The cubic root of 1255287792 is about 1078.7341685189.

The spelling of 1255287792 in words is "one billion, two hundred fifty-five million, two hundred eighty-seven thousand, seven hundred ninety-two".