2175425 has 24 divisors (see below), whose sum is σ = 3190272. Its totient is φ = 1440000.

The previous prime is 2175391. The next prime is 2175431. The reversal of 2175425 is 5245712.

It is not a de Polignac number, because 2175425 - 2⁸ = 2175169 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2175394 and 2175403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5225 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (132928).

2^2175425 is an apocalyptic number.

2175425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2175425 is a deficient number, since it is larger than the sum of its proper divisors (1014847).

2175425 is a wasteful number, since it uses less digits than its factorization.

2175425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 444 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 2175425 is about 1474.9322018317. The cubic root of 2175425 is about 129.5730569721.

It can be divided in two parts, 217 and 5425, that multiplied together give a square (1177225 = 1085²).

The spelling of 2175425 in words is "two million, one hundred seventy-five thousand, four hundred twenty-five".