109564625 has 16 divisors (see below), whose sum is σ = 137341776. Its totient is φ = 87264000.

The previous prime is 109564619. The next prime is 109564627. The reversal of 109564625 is 526465901.

It can be written as a sum of positive squares in 8 ways, for example, as 54626881 + 54937744 = 7391^2 + 7412^2 .

It is not a de Polignac number, because 109564625 - 2⁶ = 109564561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109564627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28307 + ... + 31943.

It is an arithmetic number, because the mean of its divisors is an integer number (8583861).

Almost surely, 2^109564625 is an apocalyptic number.

It is an amenable number.

109564625 is a deficient number, since it is larger than the sum of its proper divisors (27777151).

109564625 is an equidigital number, since it uses as much as digits as its factorization.

109564625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 109564625 is about 10467.3122146996. The cubic root of 109564625 is about 478.5090091394.

The spelling of 109564625 in words is "one hundred nine million, five hundred sixty-four thousand, six hundred twenty-five".