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255500441 = 736500063

255500441 has 4 divisors (see below), whose sum is σ = 292000512. Its totient is φ = 219000372.

The previous prime is 255500417. The next prime is 255500447. The reversal of 255500441 is 144005552.

255500441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255500441 - 210 = 255499417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 255500441.

It is not an unprimeable number, because it can be changed into a prime (255500447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18250025 + ... + 18250038.

It is an arithmetic number, because the mean of its divisors is an integer number (73000128).

Almost surely, 2255500441 is an apocalyptic number.

It is an amenable number.

255500441 is a deficient number, since it is larger than the sum of its proper divisors (36500071).

255500441 is an equidigital number, since it uses as much as digits as its factorization.

255500441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36500070.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 255500441 is about 15984.3811578678. The cubic root of 255500441 is about 634.5471307544.

Adding to 255500441 its reverse (144005552), we get a palindrome (399505993).

The spelling of 255500441 in words is "two hundred fifty-five million, five hundred thousand, four hundred forty-one".

Divisors: 1 7 36500063 255500441