2187025 has 6 divisors (see below), whose sum is σ = 2711942. Its totient is φ = 1749600.

The previous prime is 2187011. The next prime is 2187037. The reversal of 2187025 is 5207812.

It can be written as a sum of positive squares in 3 ways, for example, as 46656 + 2140369 = 216^2 + 1463^2 .

It is not a de Polignac number, because 2187025 - 2⁵ = 2186993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 87481 = 2187025 / (2 + 1 + 8 + 7 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43716 + ... + 43765.

2^2187025 is an apocalyptic number.

2187025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2187025 is a deficient number, since it is larger than the sum of its proper divisors (524917).

2187025 is an equidigital number, since it uses as much as digits as its factorization.

2187025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87491 (or 87486 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2187025 is about 1478.8593577484. The cubic root of 2187025 is about 129.8029559244.

The spelling of 2187025 in words is "two million, one hundred eighty-seven thousand, twenty-five".