255423616 has 32 divisors (see below), whose sum is σ = 581546880. Its totient is φ = 109466880.

The previous prime is 255423613. The next prime is 255423643. The reversal of 255423616 is 616324552.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×255423616² = 130482447221030912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255423613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141640 + ... + 143431.

It is an arithmetic number, because the mean of its divisors is an integer number (18173340).

Almost surely, 2^255423616 is an apocalyptic number.

It is an amenable number.

255423616 is an abundant number, since it is smaller than the sum of its proper divisors (326123264).

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

255423616 is an equidigital number, since it uses as much as digits as its factorization.

255423616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285092 (or 285080 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 255423616 is about 15981.9778500660. The cubic root of 255423616 is about 634.4835249018.

The spelling of 255423616 in words is "two hundred fifty-five million, four hundred twenty-three thousand, six hundred sixteen".