2125000025 has 12 divisors (see below), whose sum is σ = 2641785900. Its totient is φ = 1695622080.

The previous prime is 2125000019. The next prime is 2125000037. The reversal of 2125000025 is 5200005212.

It can be written as a sum of positive squares in 6 ways, for example, as 519475264 + 1605524761 = 22792^2 + 40069^2 .

It is not a de Polignac number, because 2125000025 - 2¹⁶ = 2124934489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2124999967 and 2125000012.

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 11 ways as a sum of consecutive naturals, for example, 99530 + ... + 118979.

It is an arithmetic number, because the mean of its divisors is an integer number (220148825).

Almost surely, 2^2125000025 is an apocalyptic number.

2125000025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2125000025 is a deficient number, since it is larger than the sum of its proper divisors (516785875).

2125000025 is a wasteful number, since it uses less digits than its factorization.

2125000025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218908 (or 218903 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2125000025 is about 46097.7225576275. The cubic root of 2125000025 is about 1285.6408003708.

Adding to 2125000025 its reverse (5200005212), we get a palindrome (7325005237).

It can be divided in two parts, 21 and 25000025, that multiplied together give a palindrome (525000525).

The spelling of 2125000025 in words is "two billion, one hundred twenty-five million, twenty-five", and thus it is an aban number.