256535877 has 16 divisors (see below), whose sum is σ = 371625408. Its totient is φ = 156468480.

The previous prime is 256535869. The next prime is 256535879. The reversal of 256535877 is 778535652.

It is not a de Polignac number, because 256535877 - 2³ = 256535869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256535879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24699 + ... + 33512.

It is an arithmetic number, because the mean of its divisors is an integer number (23226588).

Almost surely, 2^256535877 is an apocalyptic number.

It is an amenable number.

256535877 is a deficient number, since it is larger than the sum of its proper divisors (115089531).

256535877 is a wasteful number, since it uses less digits than its factorization.

256535877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58340.

The product of its digits is 1764000, while the sum is 48.

The square root of 256535877 is about 16016.7374018556. The cubic root of 256535877 is about 635.4031597743.

The spelling of 256535877 in words is "two hundred fifty-six million, five hundred thirty-five thousand, eight hundred seventy-seven".