256335377 has 4 divisors (see below), whose sum is σ = 257281536. Its totient is φ = 255389220.

The previous prime is 256335361. The next prime is 256335383. The reversal of 256335377 is 773533652.

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 256335377 - 2⁴ = 256335361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256335307) 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, 472673 + ... + 473214.

It is an arithmetic number, because the mean of its divisors is an integer number (64320384).

Almost surely, 2^256335377 is an apocalyptic number.

It is an amenable number.

256335377 is a deficient number, since it is larger than the sum of its proper divisors (946159).

256335377 is an equidigital number, since it uses as much as digits as its factorization.

256335377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946158.

The product of its digits is 396900, while the sum is 41.

The square root of 256335377 is about 16010.4771009486. The cubic root of 256335377 is about 635.2375798957.

The spelling of 256335377 in words is "two hundred fifty-six million, three hundred thirty-five thousand, three hundred seventy-seven".