256212235 has 16 divisors (see below), whose sum is σ = 317693376. Its totient is φ = 198211968.

The previous prime is 256212227. The next prime is 256212251. The reversal of 256212235 is 532212652.

It is a cyclic number.

It is not a de Polignac number, because 256212235 - 2³ = 256212227 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26749 + ... + 35041.

It is an arithmetic number, because the mean of its divisors is an integer number (19855836).

Almost surely, 2^256212235 is an apocalyptic number.

256212235 is a deficient number, since it is larger than the sum of its proper divisors (61481141).

256212235 is a wasteful number, since it uses less digits than its factorization.

256212235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8502.

The product of its digits is 7200, while the sum is 28.

The square root of 256212235 is about 16006.6309696950. The cubic root of 256212235 is about 635.1358421430.

Adding to 256212235 its reverse (532212652), we get a palindrome (788424887).

The spelling of 256212235 in words is "two hundred fifty-six million, two hundred twelve thousand, two hundred thirty-five".