2572134561 has 16 divisors (see below), whose sum is σ = 4034721600. Its totient is φ = 1613888064.

The previous prime is 2572134541. The next prime is 2572134563. The reversal of 2572134561 is 1654312752.

2572134561 is a `hidden beast` number, since 2 + 572 + 1 + 34 + 56 + 1 = 666.

It is not a de Polignac number, because 2572134561 - 2⁵ = 2572134529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2572134563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2801431 + ... + 2802348.

It is an arithmetic number, because the mean of its divisors is an integer number (252170100).

Almost surely, 2^2572134561 is an apocalyptic number.

It is an amenable number.

2572134561 is a deficient number, since it is larger than the sum of its proper divisors (1462587039).

2572134561 is a wasteful number, since it uses less digits than its factorization.

2572134561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5603805 (or 5603799 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2572134561 is about 50716.2159570290. The cubic root of 2572134561 is about 1370.1387894628.

The spelling of 2572134561 in words is "two billion, five hundred seventy-two million, one hundred thirty-four thousand, five hundred sixty-one".