25487510000 has 50 divisors (see below), whose sum is σ = 61707834672. Its totient is φ = 10195000000.

The previous prime is 25487509987. The next prime is 25487510017. The reversal of 25487510000 is 1578452.

It is a tau number, because it is divible by the number of its divisors (50).

It is a super-2 number, since 2×25487510000² (a number of 22 digits) contains 22 as substring.

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 9 ways as a sum of consecutive naturals, for example, 1264376 + ... + 1284375.

Almost surely, 2^25487510000 is an apocalyptic number.

25487510000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25487510000 is an abundant number, since it is smaller than the sum of its proper divisors (36220324672).

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

25487510000 is an equidigital number, since it uses as much as digits as its factorization.

25487510000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548779 (or 2548758 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The spelling of 25487510000 in words is "twenty-five billion, four hundred eighty-seven million, five hundred ten thousand".