109988725 has 48 divisors (see below), whose sum is σ = 180095616. Its totient is φ = 64512000.

The previous prime is 109988717. The next prime is 109988743. The reversal of 109988725 is 527889901.

It is not a de Polignac number, because 109988725 - 2³ = 109988717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31045 + ... + 34405.

It is an arithmetic number, because the mean of its divisors is an integer number (3751992).

Almost surely, 2^109988725 is an apocalyptic number.

It is an amenable number.

109988725 is a deficient number, since it is larger than the sum of its proper divisors (70106891).

109988725 is a wasteful number, since it uses less digits than its factorization.

109988725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3401 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 49.

The square root of 109988725 is about 10487.5509533923. The cubic root of 109988725 is about 479.1256144624.

The spelling of 109988725 in words is "one hundred nine million, nine hundred eighty-eight thousand, seven hundred twenty-five".