2521630411 has 2 divisors, whose sum is σ = 2521630412. Its totient is φ = 2521630410.

The previous prime is 2521630403. The next prime is 2521630439. The reversal of 2521630411 is 1140361252.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2521630411 - 2³ = 2521630403 is a prime.

It is not a weakly prime, because it can be changed into another prime (2521630711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260815205 + 1260815206.

It is an arithmetic number, because the mean of its divisors is an integer number (1260815206).

Almost surely, 2^2521630411 is an apocalyptic number.

2521630411 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521630411 is an equidigital number, since it uses as much as digits as its factorization.

2521630411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2521630411 is about 50215.8382485048. The cubic root of 2521630411 is about 1361.1118378743. Note that the first 3 decimals are identical.

Adding to 2521630411 its reverse (1140361252), we get a palindrome (3661991663).

The spelling of 2521630411 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, four hundred eleven".