25250025002500 has 60 divisors (see below), whose sum is σ = 55314833699664. Its totient is φ = 10082069812000.

The previous prime is 25250025002417. The next prime is 25250025002537. The reversal of 25250025002500 is 520052005252.

25250025002500 is a modest number, since divided by 25002500 gives 252500 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7562314 + ... + 10377313.

Almost surely, 2^{25250025002500} is an apocalyptic number.

25250025002500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25250025002500 is an abundant number, since it is smaller than the sum of its proper divisors (30064808697164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25250025002500 is a wasteful number, since it uses less digits than its factorization.

25250025002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17940214 (or 17940197 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

Adding to 25250025002500 its reverse (520052005252), we get a palindrome (25770077007752).

The spelling of 25250025002500 in words is "twenty-five trillion, two hundred fifty billion, twenty-five million, two thousand, five hundred".