5725561129 has 4 divisors (see below), whose sum is σ = 5767353684. Its totient is φ = 5683768576.

The previous prime is 5725561111. The next prime is 5725561133. The reversal of 5725561129 is 9211655275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3490446400 + 2235114729 = 59080^2 + 47277^2 .

It is a cyclic number.

It is not a de Polignac number, because 5725561129 - 2⁷ = 5725561001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5725561139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20896072 + ... + 20896345.

It is an arithmetic number, because the mean of its divisors is an integer number (1441838421).

Almost surely, 2^5725561129 is an apocalyptic number.

It is an amenable number.

5725561129 is a deficient number, since it is larger than the sum of its proper divisors (41792555).

5725561129 is a wasteful number, since it uses less digits than its factorization.

5725561129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41792554.

The product of its digits is 189000, while the sum is 43.

The square root of 5725561129 is about 75667.4377060569. The cubic root of 5725561129 is about 1788.9821964714.

The spelling of 5725561129 in words is "five billion, seven hundred twenty-five million, five hundred sixty-one thousand, one hundred twenty-nine".