2521311 has 12 divisors (see below), whose sum is σ = 3640968. Its totient is φ = 1551264.

The previous prime is 2521307. The next prime is 2521327. The reversal of 2521311 is 1131252.

It is not a de Polignac number, because 2521311 - 2² = 2521307 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521361) 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, 1980 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (303414).

2^2521311 is an apocalyptic number.

2521311 is a deficient number, since it is larger than the sum of its proper divisors (1119657).

2521311 is a wasteful number, since it uses less digits than its factorization.

2521311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002 (or 4989 counting only the distinct ones).

The product of its digits is 60, while the sum is 15.

The square root of 2521311 is about 1587.8636591345. The cubic root of 2521311 is about 136.1054365475.

Adding to 2521311 its reverse (1131252), we get a palindrome (3652563).

The spelling of 2521311 in words is "two million, five hundred twenty-one thousand, three hundred eleven".