43256061 has 12 divisors (see below), whose sum is σ = 63035388. Its totient is φ = 28581504.

The previous prime is 43256053. The next prime is 43256089. The reversal of 43256061 is 16065234.

43256061 is a `hidden beast` number, since 43 + 2 + 560 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5433561 + 37822500 = 2331^2 + 6150^2 .

It is not a de Polignac number, because 43256061 - 2³ = 43256053 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 (43256011) 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, 20250 + ... + 22283.

It is an arithmetic number, because the mean of its divisors is an integer number (5252949).

Almost surely, 2^43256061 is an apocalyptic number.

It is an amenable number.

43256061 is a deficient number, since it is larger than the sum of its proper divisors (19779327).

43256061 is a wasteful number, since it uses less digits than its factorization.

43256061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42652 (or 42649 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 43256061 is about 6576.9340121367. The cubic root of 43256061 is about 351.0338438645.

The spelling of 43256061 in words is "forty-three million, two hundred fifty-six thousand, sixty-one".