2530025621 has 2 divisors, whose sum is σ = 2530025622. Its totient is φ = 2530025620.

The previous prime is 2530025539. The next prime is 2530025623. The reversal of 2530025621 is 1265200352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2262048721 + 267976900 = 47561^2 + 16370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2530025621 is a prime.

Together with 2530025623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2530025623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265012810 + 1265012811.

It is an arithmetic number, because the mean of its divisors is an integer number (1265012811).

Almost surely, 2^2530025621 is an apocalyptic number.

It is an amenable number.

2530025621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530025621 is an equidigital number, since it uses as much as digits as its factorization.

2530025621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2530025621 is about 50299.3600456308. The cubic root of 2530025621 is about 1362.6206714771.

Adding to 2530025621 its reverse (1265200352), we get a palindrome (3795225973).

The spelling of 2530025621 in words is "two billion, five hundred thirty million, twenty-five thousand, six hundred twenty-one".