1255155456 has 36 divisors (see below), whose sum is σ = 3340545992. Its totient is φ = 418384896.

The previous prime is 1255155443. The next prime is 1255155463. The reversal of 1255155456 is 6545515521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816391 + ... + 817926.

Almost surely, 2^1255155456 is an apocalyptic number.

1255155456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1255155456 is an abundant number, since it is smaller than the sum of its proper divisors (2085390536).

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

1255155456 is an equidigital number, since it uses as much as digits as its factorization.

1255155456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634336 (or 1634322 counting only the distinct ones).

The product of its digits is 150000, while the sum is 39.

The square root of 1255155456 is about 35428.1731959185. The cubic root of 1255155456 is about 1078.6962594480.

The spelling of 1255155456 in words is "one billion, two hundred fifty-five million, one hundred fifty-five thousand, four hundred fifty-six".