25003025780 has 12 divisors (see below), whose sum is σ = 52506354180. Its totient is φ = 10001210304.

The previous prime is 25003025779. The next prime is 25003025783. The reversal of 25003025780 is 8752030052.

It can be written as a sum of positive squares in 2 ways, for example, as 5229603856 + 19773421924 = 72316^2 + 140618^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25003025783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625075625 + ... + 625075664.

It is an arithmetic number, because the mean of its divisors is an integer number (4375529515).

Almost surely, 2^25003025780 is an apocalyptic number.

25003025780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25003025780 is an abundant number, since it is smaller than the sum of its proper divisors (27503328400).

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

25003025780 is a wasteful number, since it uses less digits than its factorization.

25003025780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250151298 (or 1250151296 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 25003025780 in words is "twenty-five billion, three million, twenty-five thousand, seven hundred eighty".