2534707561 has 12 divisors (see below), whose sum is σ = 2631900700. Its totient is φ = 2440988928.

The previous prime is 2534707537. The next prime is 2534707573. The reversal of 2534707561 is 1657074352.

It can be written as a sum of positive squares in 6 ways, for example, as 627201936 + 1907505625 = 25044^2 + 43675^2 .

It is not a de Polignac number, because 2534707561 - 2¹³ = 2534699369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2534707501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 340285 + ... + 347653.

Almost surely, 2^2534707561 is an apocalyptic number.

It is an amenable number.

2534707561 is a deficient number, since it is larger than the sum of its proper divisors (97193139).

2534707561 is an equidigital number, since it uses as much as digits as its factorization.

2534707561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836 (or 7807 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 2534707561 is about 50345.8792852007. The cubic root of 2534707561 is about 1363.4606862831.

The spelling of 2534707561 in words is "two billion, five hundred thirty-four million, seven hundred seven thousand, five hundred sixty-one".