2743553521 has 2 divisors, whose sum is σ = 2743553522. Its totient is φ = 2743553520.

The previous prime is 2743553447. The next prime is 2743553563. The reversal of 2743553521 is 1253553472.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1979805025 + 763748496 = 44495^2 + 27636^2 .

It is a cyclic number.

It is not a de Polignac number, because 2743553521 - 2⁹ = 2743553009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2743553821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371776760 + 1371776761.

It is an arithmetic number, because the mean of its divisors is an integer number (1371776761).

Almost surely, 2^2743553521 is an apocalyptic number.

It is an amenable number.

2743553521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2743553521 is an equidigital number, since it uses as much as digits as its factorization.

2743553521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 37.

The square root of 2743553521 is about 52378.9415796081. The cubic root of 2743553521 is about 1399.9240640786.

The spelling of 2743553521 in words is "two billion, seven hundred forty-three million, five hundred fifty-three thousand, five hundred twenty-one".