255648550 has 48 divisors (see below), whose sum is σ = 511105680. Its totient is φ = 94807680.

The previous prime is 255648541. The next prime is 255648551. The reversal of 255648550 is 55846552.

It is a super-2 number, since 2×255648550² = 130712362234205000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255648551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3815617 + ... + 3815683.

It is an arithmetic number, because the mean of its divisors is an integer number (10648035).

Almost surely, 2^255648550 is an apocalyptic number.

255648550 is a deficient number, since it is larger than the sum of its proper divisors (255457130).

255648550 is an frugal number, since it uses more digits than its factorization.

255648550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 40.

The square root of 255648550 is about 15989.0134154675. The cubic root of 255648550 is about 634.6697189146.

The spelling of 255648550 in words is "two hundred fifty-five million, six hundred forty-eight thousand, five hundred fifty".