2051560 has 64 divisors (see below), whose sum is σ = 5598720. Its totient is φ = 660480.

The previous prime is 2051537. The next prime is 2051587. The reversal of 2051560 is 651502.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4545 + ... + 4975.

It is an arithmetic number, because the mean of its divisors is an integer number (87480).

2^2051560 is an apocalyptic number.

2051560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2051560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2799360).

2051560 is an abundant number, since it is smaller than the sum of its proper divisors (3547160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2051560 is a wasteful number, since it uses less digits than its factorization.

2051560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 2051560 is about 1432.3267783575. The cubic root of 2051560 is about 127.0656242157.

The spelling of 2051560 in words is "two million, fifty-one thousand, five hundred sixty".