1255277568 has 88 divisors (see below), whose sum is σ = 3357407520. Its totient is φ = 416972800.

The previous prime is 1255277567. The next prime is 1255277593. The reversal of 1255277568 is 8657725521.

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

It is not an unprimeable number, because it can be changed into a prime (1255277567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1231363 + ... + 1232381.

Almost surely, 2^1255277568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255277568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678703760).

1255277568 is an abundant number, since it is smaller than the sum of its proper divisors (2102129952).

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

1255277568 is a wasteful number, since it uses less digits than its factorization.

1255277568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443 (or 1425 counting only the distinct ones).

The product of its digits is 1176000, while the sum is 48.

The square root of 1255277568 is about 35429.8965282147. The cubic root of 1255277568 is about 1078.7312398390.

The spelling of 1255277568 in words is "one billion, two hundred fifty-five million, two hundred seventy-seven thousand, five hundred sixty-eight".