256416541 has 4 divisors (see below), whose sum is σ = 259662400. Its totient is φ = 253170684.

The previous prime is 256416527. The next prime is 256416547. The reversal of 256416541 is 145614652.

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 256416541 - 2⁵ = 256416509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 256416497 and 256416506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256416547) 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, 1622811 + ... + 1622968.

It is an arithmetic number, because the mean of its divisors is an integer number (64915600).

Almost surely, 2^256416541 is an apocalyptic number.

It is an amenable number.

256416541 is a deficient number, since it is larger than the sum of its proper divisors (3245859).

256416541 is an equidigital number, since it uses as much as digits as its factorization.

256416541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3245858.

The product of its digits is 28800, while the sum is 34.

The square root of 256416541 is about 16013.0116155581. The cubic root of 256416541 is about 635.3046183498.

The spelling of 256416541 in words is "two hundred fifty-six million, four hundred sixteen thousand, five hundred forty-one".