25002500250025 has 48 divisors (see below), whose sum is σ = 33519394268784. Its totient is φ = 18431997050880.

The previous prime is 25002500250001. The next prime is 25002500250053. The reversal of 25002500250025 is 52005200520052.

It can be written as a sum of positive squares in 24 ways, for example, as 6917757406569 + 18084742843456 = 2630163^2 + 4252616^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25002500250025 is a prime.

It is a Duffinian number.

25002500250025 is a modest number, since divided by 2500250025 gives 25 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 25002500249975 and 25002500250002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1309249 + ... + 7191601.

It is an arithmetic number, because the mean of its divisors is an integer number (698320713933).

Almost surely, 2^{25002500250025} is an apocalyptic number.

25002500250025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25002500250025 is a deficient number, since it is larger than the sum of its proper divisors (8516894018759).

25002500250025 is a wasteful number, since it uses less digits than its factorization.

25002500250025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882590 (or 5882585 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

Adding to 25002500250025 its reverse (52005200520052), we get a palindrome (77007700770077).

It can be divided in two parts, 25002500 and 250025, that multiplied together give a square (6251250062500 = 2500250²).

The spelling of 25002500250025 in words is "twenty-five trillion, two billion, five hundred million, two hundred fifty thousand, twenty-five".