2530552504981 has 2 divisors, whose sum is σ = 2530552504982. Its totient is φ = 2530552504980.

The previous prime is 2530552504937. The next prime is 2530552504999. The reversal of 2530552504981 is 1894052550352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2241098820900 + 289453684081 = 1497030^2 + 538009^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530552504981 - 2²⁵ = 2530518950549 is a prime.

It is a super-2 number, since 2×2530552504981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2530552534981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265276252490 + 1265276252491.

It is an arithmetic number, because the mean of its divisors is an integer number (1265276252491).

Almost surely, 2^{2530552504981} is an apocalyptic number.

It is an amenable number.

2530552504981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530552504981 is an equidigital number, since it uses as much as digits as its factorization.

2530552504981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160000, while the sum is 49.

The spelling of 2530552504981 in words is "two trillion, five hundred thirty billion, five hundred fifty-two million, five hundred four thousand, nine hundred eighty-one".