2732405261 has 2 divisors, whose sum is σ = 2732405262. Its totient is φ = 2732405260.

The previous prime is 2732405237. The next prime is 2732405279. The reversal of 2732405261 is 1625042372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1746822025 + 985583236 = 41795^2 + 31394^2 .

It is a cyclic number.

It is not a de Polignac number, because 2732405261 - 2⁶ = 2732405197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2732405231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366202630 + 1366202631.

It is an arithmetic number, because the mean of its divisors is an integer number (1366202631).

Almost surely, 2^2732405261 is an apocalyptic number.

It is an amenable number.

2732405261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732405261 is an equidigital number, since it uses as much as digits as its factorization.

2732405261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 2732405261 is about 52272.4139580334. The cubic root of 2732405261 is about 1398.0253216685.

The spelling of 2732405261 in words is "two billion, seven hundred thirty-two million, four hundred five thousand, two hundred sixty-one".