2256845401 has 2 divisors, whose sum is σ = 2256845402. Its totient is φ = 2256845400.

The previous prime is 2256845341. The next prime is 2256845449. The reversal of 2256845401 is 1045486522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1676083600 + 580761801 = 40940^2 + 24099^2 .

It is a cyclic number.

It is not a de Polignac number, because 2256845401 - 2⁷ = 2256845273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2256840401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128422700 + 1128422701.

It is an arithmetic number, because the mean of its divisors is an integer number (1128422701).

Almost surely, 2^2256845401 is an apocalyptic number.

It is an amenable number.

2256845401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256845401 is an equidigital number, since it uses as much as digits as its factorization.

2256845401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 2256845401 is about 47506.2669655278. The cubic root of 2256845401 is about 1311.6982425021.

The spelling of 2256845401 in words is "two billion, two hundred fifty-six million, eight hundred forty-five thousand, four hundred one".