256954359 has 4 divisors (see below), whose sum is σ = 342605816. Its totient is φ = 171302904.

The previous prime is 256954343. The next prime is 256954361. The reversal of 256954359 is 953459652.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 256954359 - 2⁴ = 256954343 is a prime.

It is a super-3 number, since 3×256954359³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256954559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42825724 + ... + 42825729.

It is an arithmetic number, because the mean of its divisors is an integer number (85651454).

Almost surely, 2^256954359 is an apocalyptic number.

256954359 is a deficient number, since it is larger than the sum of its proper divisors (85651457).

256954359 is an equidigital number, since it uses as much as digits as its factorization.

256954359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85651456.

The product of its digits is 1458000, while the sum is 48.

The square root of 256954359 is about 16029.7959749961. The cubic root of 256954359 is about 635.7484790212.

The spelling of 256954359 in words is "two hundred fifty-six million, nine hundred fifty-four thousand, three hundred fifty-nine".