2189525 has 12 divisors (see below), whose sum is σ = 2924292. Its totient is φ = 1616640.

The previous prime is 2189521. The next prime is 2189533. The reversal of 2189525 is 5259812.

It can be written as a sum of positive squares in 6 ways, for example, as 232324 + 1957201 = 482^2 + 1399^2 .

It is not a de Polignac number, because 2189525 - 2² = 2189521 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2189491 and 2189500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3044 + ... + 3693.

It is an arithmetic number, because the mean of its divisors is an integer number (243691).

2^2189525 is an apocalyptic number.

2189525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2189525 is a deficient number, since it is larger than the sum of its proper divisors (734767).

2189525 is a wasteful number, since it uses less digits than its factorization.

2189525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760 (or 6755 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 2189525 is about 1479.7043623643. The cubic root of 2189525 is about 129.8523965754.

The spelling of 2189525 in words is "two million, one hundred eighty-nine thousand, five hundred twenty-five".