5453520781 has 2 divisors, whose sum is σ = 5453520782. Its totient is φ = 5453520780.

The previous prime is 5453520767. The next prime is 5453520827. The reversal of 5453520781 is 1870253545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2784145225 + 2669375556 = 52765^2 + 51666^2 .

It is a cyclic number.

It is not a de Polignac number, because 5453520781 - 2¹⁵ = 5453488013 is a prime.

It is a super-2 number, since 2×5453520781² = 59481777817597699922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5453520181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2726760390 + 2726760391.

It is an arithmetic number, because the mean of its divisors is an integer number (2726760391).

Almost surely, 2^5453520781 is an apocalyptic number.

It is an amenable number.

5453520781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5453520781 is an equidigital number, since it uses as much as digits as its factorization.

5453520781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 5453520781 is about 73847.9571890787. The cubic root of 5453520781 is about 1760.1877361937.

The spelling of 5453520781 in words is "five billion, four hundred fifty-three million, five hundred twenty thousand, seven hundred eighty-one".