25263900125 has 16 divisors (see below), whose sum is σ = 31841535024. Its totient is φ = 20011000000.

The previous prime is 25263900119. The next prime is 25263900131. The reversal of 25263900125 is 52100936252.

It is an interprime number because it is at equal distance from previous prime (25263900119) and next prime (25263900131).

It can be written as a sum of positive squares in 8 ways, for example, as 7249160164 + 18014739961 = 85142^2 + 134219^2 .

It is not a de Polignac number, because 25263900125 - 2¹² = 25263896029 is a prime.

It is a Duffinian number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 987926 + ... + 1013175.

It is an arithmetic number, because the mean of its divisors is an integer number (1990095939).

Almost surely, 2^25263900125 is an apocalyptic number.

25263900125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25263900125 is a deficient number, since it is larger than the sum of its proper divisors (6577634899).

25263900125 is a wasteful number, since it uses less digits than its factorization.

25263900125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001217 (or 2001207 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 25263900125 in words is "twenty-five billion, two hundred sixty-three million, nine hundred thousand, one hundred twenty-five".