255904541 has 4 divisors (see below), whose sum is σ = 257383932. Its totient is φ = 254425152.

The previous prime is 255904531. The next prime is 255904547. The reversal of 255904541 is 145409552.

It is a happy number.

255904541 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.

It can be written as a sum of positive squares in 2 ways, for example, as 230402041 + 25502500 = 15179^2 + 5050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255904541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255904547) 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, 739436 + ... + 739781.

It is an arithmetic number, because the mean of its divisors is an integer number (64345983).

Almost surely, 2^255904541 is an apocalyptic number.

It is an amenable number.

255904541 is a deficient number, since it is larger than the sum of its proper divisors (1479391).

255904541 is a wasteful number, since it uses less digits than its factorization.

255904541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479390.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 255904541 is about 15997.0166281091. The cubic root of 255904541 is about 634.8814882062.

The spelling of 255904541 in words is "two hundred fifty-five million, nine hundred four thousand, five hundred forty-one".