25024561025 has 6 divisors (see below), whose sum is σ = 31030455702. Its totient is φ = 20019648800.

The previous prime is 25024560991. The next prime is 25024561033. The reversal of 25024561025 is 52016542052.

It can be written as a sum of positive squares in 3 ways, for example, as 24840256 + 24999720769 = 4984^2 + 158113^2 .

It is not a de Polignac number, because 25024561025 - 2⁶ = 25024560961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25024560982 and 25024561000.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 500491196 + ... + 500491245.

It is an arithmetic number, because the mean of its divisors is an integer number (5171742617).

Almost surely, 2^25024561025 is an apocalyptic number.

25024561025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25024561025 is a deficient number, since it is larger than the sum of its proper divisors (6005894677).

25024561025 is a wasteful number, since it uses less digits than its factorization.

25024561025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000982451 (or 1000982446 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The spelling of 25024561025 in words is "twenty-five billion, twenty-four million, five hundred sixty-one thousand, twenty-five".