2721652517 has 2 divisors, whose sum is σ = 2721652518. Its totient is φ = 2721652516.

The previous prime is 2721652469. The next prime is 2721652541. The reversal of 2721652517 is 7152561272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2717119876 + 4532641 = 52126^2 + 2129^2 .

It is a cyclic number.

It is not a de Polignac number, because 2721652517 - 2²² = 2717458213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2721652567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1360826258 + 1360826259.

It is an arithmetic number, because the mean of its divisors is an integer number (1360826259).

Almost surely, 2^2721652517 is an apocalyptic number.

It is an amenable number.

2721652517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2721652517 is an equidigital number, since it uses as much as digits as its factorization.

2721652517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 38.

The square root of 2721652517 is about 52169.4596195897. The cubic root of 2721652517 is about 1396.1890432148.

The spelling of 2721652517 in words is "two billion, seven hundred twenty-one million, six hundred fifty-two thousand, five hundred seventeen".