4025217641 has 2 divisors, whose sum is σ = 4025217642. Its totient is φ = 4025217640.

The previous prime is 4025217617. The next prime is 4025217689. The reversal of 4025217641 is 1467125204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3563612416 + 461605225 = 59696^2 + 21485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4025217641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4025217598 and 4025217607.

It is not a weakly prime, because it can be changed into another prime (4025217611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2012608820 + 2012608821.

It is an arithmetic number, because the mean of its divisors is an integer number (2012608821).

Almost surely, 2^4025217641 is an apocalyptic number.

It is an amenable number.

4025217641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4025217641 is an equidigital number, since it uses as much as digits as its factorization.

4025217641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4025217641 is about 63444.6029304306. The cubic root of 4025217641 is about 1590.7299419962.

The spelling of 4025217641 in words is "four billion, twenty-five million, two hundred seventeen thousand, six hundred forty-one".