2529721061 has 16 divisors (see below), whose sum is σ = 2944685184. Its totient is φ = 2128486464.

The previous prime is 2529721039. The next prime is 2529721063. The reversal of 2529721061 is 1601279252.

It is a cyclic number.

It is not a de Polignac number, because 2529721061 - 2¹⁴ = 2529704677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2529721063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77351 + ... + 105083.

It is an arithmetic number, because the mean of its divisors is an integer number (184042824).

Almost surely, 2^2529721061 is an apocalyptic number.

It is an amenable number.

2529721061 is a deficient number, since it is larger than the sum of its proper divisors (414964123).

2529721061 is a wasteful number, since it uses less digits than its factorization.

2529721061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27980.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2529721061 is about 50296.3324806094. The cubic root of 2529721061 is about 1362.5659926625.

The spelling of 2529721061 in words is "two billion, five hundred twenty-nine million, seven hundred twenty-one thousand, sixty-one".