2256515047 has 2 divisors, whose sum is σ = 2256515048. Its totient is φ = 2256515046.

The previous prime is 2256515021. The next prime is 2256515071. The reversal of 2256515047 is 7405156522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2256515047 - 2⁷ = 2256514919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2256514997 and 2256515015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2256515087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128257523 + 1128257524.

It is an arithmetic number, because the mean of its divisors is an integer number (1128257524).

Almost surely, 2^2256515047 is an apocalyptic number.

2256515047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2256515047 is an equidigital number, since it uses as much as digits as its factorization.

2256515047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 2256515047 is about 47502.7898864898. The cubic root of 2256515047 is about 1311.6342378365.

The spelling of 2256515047 in words is "two billion, two hundred fifty-six million, five hundred fifteen thousand, forty-seven".