2187425 has 12 divisors (see below), whose sum is σ = 2760240. Its totient is φ = 1719120.

The previous prime is 2187421. The next prime is 2187457. The reversal of 2187425 is 5247812.

It is not a de Polignac number, because 2187425 - 2² = 2187421 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2187421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 734 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (230020).

2^2187425 is an apocalyptic number.

2187425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2187425 is a deficient number, since it is larger than the sum of its proper divisors (572815).

2187425 is a wasteful number, since it uses less digits than its factorization.

2187425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552 (or 1547 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 2187425 is about 1478.9945909299. The cubic root of 2187425 is about 129.8108689596.

The spelling of 2187425 in words is "two million, one hundred eighty-seven thousand, four hundred twenty-five".