25000025025 has 24 divisors (see below), whose sum is σ = 41349540960. Its totient is φ = 13328131840.

The previous prime is 25000025023. The next prime is 25000025093. The reversal of 25000025025 is 52052000052.

It is not a de Polignac number, because 25000025025 - 2¹ = 25000025023 is a prime.

25000025025 is a modest number, since divided by 25025 gives 25000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 25000024992 and 25000025010.

It is not an unprimeable number, because it can be changed into a prime (25000025023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131794 + ... + 259556.

It is an arithmetic number, because the mean of its divisors is an integer number (1722897540).

Almost surely, 2^25000025025 is an apocalyptic number.

25000025025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25000025025 is a deficient number, since it is larger than the sum of its proper divisors (16349515935).

25000025025 is a wasteful number, since it uses less digits than its factorization.

25000025025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130385 (or 130380 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

Adding to 25000025025 its reverse (52052000052), we get a palindrome (77052025077).

The spelling of 25000025025 in words is "twenty-five billion, twenty-five thousand, twenty-five".