2521214881 has 2 divisors, whose sum is σ = 2521214882. Its totient is φ = 2521214880.

The previous prime is 2521214827. The next prime is 2521214887. The reversal of 2521214881 is 1884121252.

2521214881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1782190656 + 739024225 = 42216^2 + 27185^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521214881 - 2¹¹ = 2521212833 is a prime.

It is a super-2 number, since 2×2521214881² = 12713048952351688322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2521214887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260607440 + 1260607441.

It is an arithmetic number, because the mean of its divisors is an integer number (1260607441).

Almost surely, 2^2521214881 is an apocalyptic number.

It is an amenable number.

2521214881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521214881 is an equidigital number, since it uses as much as digits as its factorization.

2521214881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10240, while the sum is 34.

The square root of 2521214881 is about 50211.7006383970. The cubic root of 2521214881 is about 1361.0370695989.

The spelling of 2521214881 in words is "two billion, five hundred twenty-one million, two hundred fourteen thousand, eight hundred eighty-one".