12505100 has 36 divisors (see below), whose sum is σ = 28321104. Its totient is φ = 4783680.

The previous prime is 12505093. The next prime is 12505111. The reversal of 12505100 is 150521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 419 + ... + 5018.

Almost surely, 2^12505100 is an apocalyptic number.

12505100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12505100 is an abundant number, since it is smaller than the sum of its proper divisors (15816004).

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

12505100 is a wasteful number, since it uses less digits than its factorization.

12505100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474 (or 5467 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 12505100 is about 3536.2550812972. The cubic root of 12505100 is about 232.1110001931. Note that the first 3 decimals are identical.

Adding to 12505100 its reverse (150521), we get a palindrome (12655621).

The spelling of 12505100 in words is "twelve million, five hundred five thousand, one hundred".