2015525 has 6 divisors (see below), whose sum is σ = 2499282. Its totient is φ = 1612400.

The previous prime is 2015509. The next prime is 2015543. The reversal of 2015525 is 5255102.

It can be written as a sum of positive squares in 3 ways, for example, as 16129 + 1999396 = 127^2 + 1414^2 .

It is not a de Polignac number, because 2015525 - 2⁴ = 2015509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2015497 and 2015506.

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, 40286 + ... + 40335.

It is an arithmetic number, because the mean of its divisors is an integer number (416547).

2^2015525 is an apocalyptic number.

2015525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2015525 is a deficient number, since it is larger than the sum of its proper divisors (483757).

2015525 is an equidigital number, since it uses as much as digits as its factorization.

2015525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80631 (or 80626 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 2015525 is about 1419.6918679770. The cubic root of 2015525 is about 126.3172696434.

The spelling of 2015525 in words is "two million, fifteen thousand, five hundred twenty-five".