255641538 has 8 divisors (see below), whose sum is σ = 511283088. Its totient is φ = 85213844.

The previous prime is 255641509. The next prime is 255641543. The reversal of 255641538 is 835146552.

255641538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

255641538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 255641496 and 255641505.

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, 21303456 + ... + 21303467.

It is an arithmetic number, because the mean of its divisors is an integer number (63910386).

Almost surely, 2^255641538 is an apocalyptic number.

255641538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

255641538 is a wasteful number, since it uses less digits than its factorization.

255641538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42606928.

The product of its digits is 144000, while the sum is 39.

The square root of 255641538 is about 15988.7941383958. The cubic root of 255641538 is about 634.6639162286.

The spelling of 255641538 in words is "two hundred fifty-five million, six hundred forty-one thousand, five hundred thirty-eight".