1255722648 has 16 divisors (see below), whose sum is σ = 3139306680. Its totient is φ = 418574208.

The previous prime is 1255722647. The next prime is 1255722667. The reversal of 1255722648 is 8462275521.

It is a super-3 number, since 3×1255722648³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255722647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26160865 + ... + 26160912.

Almost surely, 2^1255722648 is an apocalyptic number.

It is an amenable number.

1255722648 is an abundant number, since it is smaller than the sum of its proper divisors (1883584032).

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

1255722648 is a wasteful number, since it uses less digits than its factorization.

1255722648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52321786 (or 52321782 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 1255722648 is about 35436.1771075831. The cubic root of 1255722648 is about 1078.8587189397.

The spelling of 1255722648 in words is "one billion, two hundred fifty-five million, seven hundred twenty-two thousand, six hundred forty-eight".