256541954 has 8 divisors (see below), whose sum is σ = 401544000. Its totient is φ = 122693956.

The previous prime is 256541927. The next prime is 256541959. The reversal of 256541954 is 459145652.

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

It is not an unprimeable number, because it can be changed into a prime (256541959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2788454 + ... + 2788545.

It is an arithmetic number, because the mean of its divisors is an integer number (50193000).

Almost surely, 2^256541954 is an apocalyptic number.

256541954 is a deficient number, since it is larger than the sum of its proper divisors (145002046).

256541954 is a wasteful number, since it uses less digits than its factorization.

256541954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577024.

The product of its digits is 216000, while the sum is 41.

The square root of 256541954 is about 16016.9271085311. The cubic root of 256541954 is about 635.4081770251.

The spelling of 256541954 in words is "two hundred fifty-six million, five hundred forty-one thousand, nine hundred fifty-four".