2747061521 has 2 divisors, whose sum is σ = 2747061522. Its totient is φ = 2747061520.

The previous prime is 2747061503. The next prime is 2747061533. The reversal of 2747061521 is 1251607472.

2747061521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1439443600 + 1307617921 = 37940^2 + 36161^2 .

It is a cyclic number.

It is not a de Polignac number, because 2747061521 - 2¹⁰ = 2747060497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2747061571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1373530760 + 1373530761.

It is an arithmetic number, because the mean of its divisors is an integer number (1373530761).

Almost surely, 2^2747061521 is an apocalyptic number.

It is an amenable number.

2747061521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2747061521 is an equidigital number, since it uses as much as digits as its factorization.

2747061521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2747061521 is about 52412.4176221628. The cubic root of 2747061521 is about 1400.5204733181.

Adding to 2747061521 its reverse (1251607472), we get a palindrome (3998668993).

The spelling of 2747061521 in words is "two billion, seven hundred forty-seven million, sixty-one thousand, five hundred twenty-one".