2021525 has 12 divisors (see below), whose sum is σ = 2734944. Its totient is φ = 1470000.

The previous prime is 2021519. The next prime is 2021527. The reversal of 2021525 is 5251202.

It is a de Polignac number, because none of the positive numbers 2^k-2021525 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3401 + ... + 3950.

It is an arithmetic number, because the mean of its divisors is an integer number (227912).

2^2021525 is an apocalyptic number.

2021525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2021525 is a deficient number, since it is larger than the sum of its proper divisors (713419).

2021525 is a wasteful number, since it uses less digits than its factorization.

2021525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7372 (or 7367 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2021525 is about 1421.8034322648. The cubic root of 2021525 is about 126.4424897545.

Adding to 2021525 its reverse (5251202), we get a palindrome (7272727).

The spelling of 2021525 in words is "two million, twenty-one thousand, five hundred twenty-five".