4256261 has 2 divisors, whose sum is σ = 4256262. Its totient is φ = 4256260.

The previous prime is 4256257. The next prime is 4256267. The reversal of 4256261 is 1626524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2579236 + 1677025 = 1606^2 + 1295^2 .

It is a cyclic number.

It is not a de Polignac number, because 4256261 - 2² = 4256257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4256261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4256267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2128130 + 2128131.

It is an arithmetic number, because the mean of its divisors is an integer number (2128131).

Almost surely, 2^4256261 is an apocalyptic number.

It is an amenable number.

4256261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4256261 is an equidigital number, since it uses as much as digits as its factorization.

4256261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 4256261 is about 2063.0707695084. The cubic root of 4256261 is about 162.0600930340.

The spelling of 4256261 in words is "four million, two hundred fifty-six thousand, two hundred sixty-one".