2521211411 has 4 divisors (see below), whose sum is σ = 2539614552. Its totient is φ = 2502808272.

The previous prime is 2521211387. The next prime is 2521211419. The reversal of 2521211411 is 1141121252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2521211411 - 2¹⁰ = 2521210387 is a prime.

It is a super-2 number, since 2×2521211411² = 12713013957913221842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2521211419) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9201365 + ... + 9201638.

It is an arithmetic number, because the mean of its divisors is an integer number (634903638).

Almost surely, 2^2521211411 is an apocalyptic number.

2521211411 is a deficient number, since it is larger than the sum of its proper divisors (18403141).

2521211411 is a wasteful number, since it uses less digits than its factorization.

2521211411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18403140.

The product of its digits is 160, while the sum is 20.

The square root of 2521211411 is about 50211.6660846859. Note that the first 3 decimals coincide. The cubic root of 2521211411 is about 1361.0364451908.

Adding to 2521211411 its reverse (1141121252), we get a palindrome (3662332663).

The spelling of 2521211411 in words is "two billion, five hundred twenty-one million, two hundred eleven thousand, four hundred eleven".