4256577139 has 2 divisors, whose sum is σ = 4256577140. Its totient is φ = 4256577138.

The previous prime is 4256577121. The next prime is 4256577187. The reversal of 4256577139 is 9317756524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4256577139 - 2¹¹ = 4256575091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4256577092 and 4256577101.

It is not a weakly prime, because it can be changed into another prime (4256577539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2128288569 + 2128288570.

It is an arithmetic number, because the mean of its divisors is an integer number (2128288570).

Almost surely, 2^4256577139 is an apocalyptic number.

4256577139 is a deficient number, since it is larger than the sum of its proper divisors (1).

4256577139 is an equidigital number, since it uses as much as digits as its factorization.

4256577139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1587600, while the sum is 49.

The square root of 4256577139 is about 65242.4489040686. The cubic root of 4256577139 is about 1620.6410533865.

The spelling of 4256577139 in words is "four billion, two hundred fifty-six million, five hundred seventy-seven thousand, one hundred thirty-nine".