2521350641 has 2 divisors, whose sum is σ = 2521350642. Its totient is φ = 2521350640.

The previous prime is 2521350617. The next prime is 2521350647. The reversal of 2521350641 is 1460531252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1730560000 + 790790641 = 41600^2 + 28121^2 .

It is a cyclic number.

It is not a de Polignac number, because 2521350641 - 2¹⁰ = 2521349617 is a prime.

It is a super-2 number, since 2×2521350641² = 12714418109742221762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2521350647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260675320 + 1260675321.

It is an arithmetic number, because the mean of its divisors is an integer number (1260675321).

Almost surely, 2^2521350641 is an apocalyptic number.

It is an amenable number.

2521350641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2521350641 is an equidigital number, since it uses as much as digits as its factorization.

2521350641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2521350641 is about 50213.0524963380. The cubic root of 2521350641 is about 1361.0614984404.

Adding to 2521350641 its reverse (1460531252), we get a palindrome (3981881893).

The spelling of 2521350641 in words is "two billion, five hundred twenty-one million, three hundred fifty thousand, six hundred forty-one".