2521113841 has 2 divisors, whose sum is σ = 2521113842. Its totient is φ = 2521113840.

The previous prime is 2521113839. The next prime is 2521113853. The reversal of 2521113841 is 1483111252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2060796816 + 460317025 = 45396^2 + 21455^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521113841 - 2¹ = 2521113839 is a prime.

Together with 2521113839, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2521113241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260556920 + 1260556921.

It is an arithmetic number, because the mean of its divisors is an integer number (1260556921).

Almost surely, 2^2521113841 is an apocalyptic number.

It is an amenable number.

2521113841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521113841 is an equidigital number, since it uses as much as digits as its factorization.

2521113841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 28.

The square root of 2521113841 is about 50210.6944883259. The cubic root of 2521113841 is about 1361.0188877528.

The spelling of 2521113841 in words is "two billion, five hundred twenty-one million, one hundred thirteen thousand, eight hundred forty-one".