256346535 has 16 divisors (see below), whose sum is σ = 411497856. Its totient is φ = 136270368.

The previous prime is 256346491. The next prime is 256346539. The reversal of 256346535 is 535643652.

It is not a de Polignac number, because 256346535 - 2⁷ = 256346407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 256346493 and 256346502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256346539) 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, 23229 + ... + 32438.

It is an arithmetic number, because the mean of its divisors is an integer number (25718616).

Almost surely, 2^256346535 is an apocalyptic number.

256346535 is a deficient number, since it is larger than the sum of its proper divisors (155151321).

256346535 is a wasteful number, since it uses less digits than its factorization.

256346535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55982.

The product of its digits is 324000, while the sum is 39.

The square root of 256346535 is about 16010.8255564790. The cubic root of 256346535 is about 635.2467968289.

The spelling of 256346535 in words is "two hundred fifty-six million, three hundred forty-six thousand, five hundred thirty-five".