25425915125 has 64 divisors (see below), whose sum is σ = 34673184000. Its totient is φ = 18503020800.

The previous prime is 25425915101. The next prime is 25425915127. The reversal of 25425915125 is 52151952452.

It is a de Polignac number, because none of the positive numbers 2^k-25425915125 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425915127) 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 63 ways as a sum of consecutive naturals, for example, 60682166 + ... + 60682584.

It is an arithmetic number, because the mean of its divisors is an integer number (541768500).

Almost surely, 2^25425915125 is an apocalyptic number.

25425915125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25425915125 is a deficient number, since it is larger than the sum of its proper divisors (9247268875).

25425915125 is a wasteful number, since it uses less digits than its factorization.

25425915125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903 (or 893 counting only the distinct ones).

The product of its digits is 180000, while the sum is 41.

The spelling of 25425915125 in words is "twenty-five billion, four hundred twenty-five million, nine hundred fifteen thousand, one hundred twenty-five".