4000025000 has 48 divisors (see below), whose sum is σ = 9374517180. Its totient is φ = 1600000000.

The previous prime is 4000024969. The next prime is 4000025033. The reversal of 4000025000 is 5200004.

It can be written as a sum of positive squares in 6 ways, for example, as 5026564 + 3994998436 = 2242^2 + 63206^2 .

It is a sliding number, since 4000025000 = 25000 + 4000000000 and 1/25000 + 1/4000000000 = 0.00004000025000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55001 + ... + 105000.

Almost surely, 2^4000025000 is an apocalyptic number.

4000025000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4000025000 is an abundant number, since it is smaller than the sum of its proper divisors (5374492180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4000025000 is an equidigital number, since it uses as much as digits as its factorization.

4000025000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160032 (or 160008 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 4000025000 is about 63245.7508454125. The cubic root of 4000025000 is about 1587.4043590468.

Adding to 4000025000 its reverse (5200004), we get a palindrome (4005225004).

It can be divided in two parts, 40000 and 25000, that multiplied together give a 9-th power (1000000000 = 10⁹).

The spelling of 4000025000 in words is "four billion, twenty-five thousand".