2117525 has 6 divisors (see below), whose sum is σ = 2625762. Its totient is φ = 1694000.

The previous prime is 2117513. The next prime is 2117539. The reversal of 2117525 is 5257112.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 23716 + 2093809 = 154^2 + 1447^2 .

It is not a de Polignac number, because 2117525 - 2⁶ = 2117461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2117525.

It is a congruent 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, 42326 + ... + 42375.

It is an arithmetic number, because the mean of its divisors is an integer number (437627).

2^2117525 is an apocalyptic number.

2117525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2117525 is a deficient number, since it is larger than the sum of its proper divisors (508237).

2117525 is an equidigital number, since it uses as much as digits as its factorization.

2117525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84711 (or 84706 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 2117525 is about 1455.1718111618. The cubic root of 2117525 is about 128.4131547422.

The spelling of 2117525 in words is "two million, one hundred seventeen thousand, five hundred twenty-five".