256741533 has 12 divisors (see below), whose sum is σ = 371006688. Its totient is φ = 171088200.

The previous prime is 256741523. The next prime is 256741567. The reversal of 256741533 is 335147652.

256741533 is a `hidden beast` number, since 2 + 56 + 74 + 1 + 533 = 666.

It is not a de Polignac number, because 256741533 - 2⁴ = 256741517 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256741523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24208 + ... + 33158.

It is an arithmetic number, because the mean of its divisors is an integer number (30917224).

Almost surely, 2^256741533 is an apocalyptic number.

It is an amenable number.

256741533 is a deficient number, since it is larger than the sum of its proper divisors (114265155).

256741533 is a wasteful number, since it uses less digits than its factorization.

256741533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12144 (or 12141 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 256741533 is about 16023.1561497727. The cubic root of 256741533 is about 635.5729080505.

It can be divided in two parts, 2567 and 41533, that added together give a square (44100 = 210²).

The spelling of 256741533 in words is "two hundred fifty-six million, seven hundred forty-one thousand, five hundred thirty-three".