2530536661 has 2 divisors, whose sum is σ = 2530536662. Its totient is φ = 2530536660.

The previous prime is 2530536647. The next prime is 2530536689. The reversal of 2530536661 is 1666350352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2521044100 + 9492561 = 50210^2 + 3081^2 .

It is a cyclic number.

It is not a de Polignac number, because 2530536661 - 2¹¹ = 2530534613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2530536661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2530536691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265268330 + 1265268331.

It is an arithmetic number, because the mean of its divisors is an integer number (1265268331).

Almost surely, 2^2530536661 is an apocalyptic number.

It is an amenable number.

2530536661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530536661 is an equidigital number, since it uses as much as digits as its factorization.

2530536661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 2530536661 is about 50304.4397742386. The cubic root of 2530536661 is about 1362.7124105728.

The spelling of 2530536661 in words is "two billion, five hundred thirty million, five hundred thirty-six thousand, six hundred sixty-one".