2521330 has 32 divisors (see below), whose sum is σ = 5241600. Its totient is φ = 855360.

The previous prime is 2521327. The next prime is 2521339. The reversal of 2521330 is 331252.

It is not an unprimeable number, because it can be changed into a prime (2521339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12571 + ... + 12769.

It is an arithmetic number, because the mean of its divisors is an integer number (163800).

2^2521330 is an apocalyptic number.

2521330 is an abundant number, since it is smaller than the sum of its proper divisors (2720270).

2521330 is a wasteful number, since it uses less digits than its factorization.

2521330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2521330 is about 1587.8696420047. The cubic root of 2521330 is about 136.1057784327.

Adding to 2521330 its reverse (331252), we get a palindrome (2852582).

The spelling of 2521330 in words is "two million, five hundred twenty-one thousand, three hundred thirty".