2052561 has 12 divisors (see below), whose sum is σ = 3183792. Its totient is φ = 1172808.

The previous prime is 2052559. The next prime is 2052569. The reversal of 2052561 is 1652502.

It is not a de Polignac number, because 2052561 - 2¹ = 2052559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2052569) 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, 6835 + ... + 7128.

It is an arithmetic number, because the mean of its divisors is an integer number (265316).

2^2052561 is an apocalyptic number.

2052561 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2052561 is a deficient number, since it is larger than the sum of its proper divisors (1131231).

2052561 is a wasteful number, since it uses less digits than its factorization.

2052561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13980 (or 13973 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2052561 is about 1432.6761671781. The cubic root of 2052561 is about 127.0862868674.

The spelling of 2052561 in words is "two million, fifty-two thousand, five hundred sixty-one".