2053521 has 12 divisors (see below), whose sum is σ = 2978820. Its totient is φ = 1363200.

The previous prime is 2053517. The next prime is 2053529. The reversal of 2053521 is 1253502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1347921 + 705600 = 1161^2 + 840^2 .

It is not a de Polignac number, because 2053521 - 2² = 2053517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2053494 and 2053503.

It is not an unprimeable number, because it can be changed into a prime (2053529) 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, 3325 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (248235).

2^2053521 is an apocalyptic number.

It is an amenable number.

2053521 is a deficient number, since it is larger than the sum of its proper divisors (925299).

2053521 is a wasteful number, since it uses less digits than its factorization.

2053521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2053521 is about 1433.0111653438. The cubic root of 2053521 is about 127.1060968868.

The spelling of 2053521 in words is "two million, fifty-three thousand, five hundred twenty-one".