2521764 has 36 divisors (see below), whose sum is σ = 7285824. Its totient is φ = 720432.

The previous prime is 2521751. The next prime is 2521769. The reversal of 2521764 is 4671252.

2521764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (2521769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4752 + ... + 5255.

It is an arithmetic number, because the mean of its divisors is an integer number (202384).

2^2521764 is an apocalyptic number.

It is an amenable number.

2521764 is an abundant number, since it is smaller than the sum of its proper divisors (4764060).

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

2521764 is a wasteful number, since it uses less digits than its factorization.

2521764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10024 (or 10019 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2521764 is about 1588.0062972167. The cubic root of 2521764 is about 136.1135873429.

It can be divided in two parts, 25217 and 64, that added together give a square (25281 = 159²).

The spelling of 2521764 in words is "two million, five hundred twenty-one thousand, seven hundred sixty-four".