255549020 has 12 divisors (see below), whose sum is σ = 536652984. Its totient is φ = 102219600.

The previous prime is 255549017. The next prime is 255549037. The reversal of 255549020 is 20945552.

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, 6388706 + ... + 6388745.

It is an arithmetic number, because the mean of its divisors is an integer number (44721082).

Almost surely, 2^255549020 is an apocalyptic number.

255549020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255549020 is an abundant number, since it is smaller than the sum of its proper divisors (281103964).

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

255549020 is a wasteful number, since it uses less digits than its factorization.

255549020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777460 (or 12777458 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 255549020 is about 15985.9006627716. The cubic root of 255549020 is about 634.5873442683.

The spelling of 255549020 in words is "two hundred fifty-five million, five hundred forty-nine thousand, twenty".