2544729521 has 2 divisors, whose sum is σ = 2544729522. Its totient is φ = 2544729520.

The previous prime is 2544729461. The next prime is 2544729569. The reversal of 2544729521 is 1259274452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2205617296 + 339112225 = 46964^2 + 18415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2544729521 - 2¹⁴ = 2544713137 is a prime.

It is a super-3 number, since 3×2544729521³ (a number of 29 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2544729571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272364760 + 1272364761.

It is an arithmetic number, because the mean of its divisors is an integer number (1272364761).

Almost surely, 2^2544729521 is an apocalyptic number.

It is an amenable number.

2544729521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544729521 is an equidigital number, since it uses as much as digits as its factorization.

2544729521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 2544729521 is about 50445.3121806179. The cubic root of 2544729521 is about 1365.2553152101.

The spelling of 2544729521 in words is "two billion, five hundred forty-four million, seven hundred twenty-nine thousand, five hundred twenty-one".