25004240000 has 80 divisors (see below), whose sum is σ = 62246691870. Its totient is φ = 10001664000.

The previous prime is 25004239927. The next prime is 25004240021. The reversal of 25004240000 is 4240052.

It can be written as a sum of positive squares in 5 ways, for example, as 4076567104 + 20927672896 = 63848^2 + 144664^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 76277 + ... + 236276.

Almost surely, 2^25004240000 is an apocalyptic number.

25004240000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25004240000 is an abundant number, since it is smaller than the sum of its proper divisors (37242451870).

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

25004240000 is an frugal number, since it uses more digits than its factorization.

25004240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312587 (or 312560 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

Adding to 25004240000 its reverse (4240052), we get a palindrome (25008480052).

The spelling of 25004240000 in words is "twenty-five billion, four million, two hundred forty thousand".