1255677216 has 48 divisors (see below), whose sum is σ = 3299587200. Its totient is φ = 418123008.

The previous prime is 1255677173. The next prime is 1255677229. The reversal of 1255677216 is 6127765521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93450 + ... + 106038.

It is an arithmetic number, because the mean of its divisors is an integer number (68741400).

Almost surely, 2^1255677216 is an apocalyptic number.

1255677216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1255677216 is an abundant number, since it is smaller than the sum of its proper divisors (2043909984).

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

1255677216 is a wasteful number, since it uses less digits than its factorization.

1255677216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641 (or 13633 counting only the distinct ones).

The product of its digits is 176400, while the sum is 42.

The square root of 1255677216 is about 35435.5360619816. The cubic root of 1255677216 is about 1078.8457077596.

The spelling of 1255677216 in words is "one billion, two hundred fifty-five million, six hundred seventy-seven thousand, two hundred sixteen".