2175525 has 48 divisors (see below), whose sum is σ = 4374720. Its totient is φ = 1051200.

The previous prime is 2175497. The next prime is 2175529. The reversal of 2175525 is 5255712.

It is a happy number.

It is not a de Polignac number, because 2175525 - 2⁶ = 2175461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7279 + ... + 7571.

It is an arithmetic number, because the mean of its divisors is an integer number (91140).

2^2175525 is an apocalyptic number.

2175525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2175525 is an abundant number, since it is smaller than the sum of its proper divisors (2199195).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2175525 is a wasteful number, since it uses less digits than its factorization.

2175525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 312 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 2175525 is about 1474.9661013054. The cubic root of 2175525 is about 129.5750423477.

The spelling of 2175525 in words is "two million, one hundred seventy-five thousand, five hundred twenty-five".