2732973521 has 2 divisors, whose sum is σ = 2732973522. Its totient is φ = 2732973520.

The previous prime is 2732973497. The next prime is 2732973553. The reversal of 2732973521 is 1253792372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1841353921 + 891619600 = 42911^2 + 29860^2 .

It is a cyclic number.

It is not a de Polignac number, because 2732973521 - 2²² = 2728779217 is a prime.

It is not a weakly prime, because it can be changed into another prime (2732973821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366486760 + 1366486761.

It is an arithmetic number, because the mean of its divisors is an integer number (1366486761).

Almost surely, 2^2732973521 is an apocalyptic number.

It is an amenable number.

2732973521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732973521 is an equidigital number, since it uses as much as digits as its factorization.

2732973521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 2732973521 is about 52277.8492384681. The cubic root of 2732973521 is about 1398.1222310123.

The spelling of 2732973521 in words is "two billion, seven hundred thirty-two million, nine hundred seventy-three thousand, five hundred twenty-one".