4025999999 has 4 divisors (see below), whose sum is σ = 4601142864. Its totient is φ = 3450857136.

The previous prime is 4025999981. The next prime is 4026000019. The reversal of 4025999999 is 9999995204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4025999999 - 2²⁰ = 4024951423 is a prime.

It is a Duffinian number.

4025999999 is a modest number, since divided by 99999 gives 40259 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4025999969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287571422 + ... + 287571435.

It is an arithmetic number, because the mean of its divisors is an integer number (1150285716).

Almost surely, 2^4025999999 is an apocalyptic number.

4025999999 is a deficient number, since it is larger than the sum of its proper divisors (575142865).

4025999999 is an equidigital number, since it uses as much as digits as its factorization.

4025999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575142864.

The product of its (nonzero) digits is 21257640, while the sum is 65.

The square root of 4025999999 is about 63450.7683089811. The cubic root of 4025999999 is about 1590.8329956102.

The spelling of 4025999999 in words is "four billion, twenty-five million, nine hundred ninety-nine thousand, nine hundred ninety-nine".