5465445581 has 2 divisors, whose sum is σ = 5465445582. Its totient is φ = 5465445580.

The previous prime is 5465445577. The next prime is 5465445599. The reversal of 5465445581 is 1855445645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3435132100 + 2030313481 = 58610^2 + 45059^2 .

It is a cyclic number.

It is not a de Polignac number, because 5465445581 - 2² = 5465445577 is a prime.

It is a super-2 number, since 2×5465445581² = 59742190797744855122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5465445511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2732722790 + 2732722791.

It is an arithmetic number, because the mean of its divisors is an integer number (2732722791).

Almost surely, 2^5465445581 is an apocalyptic number.

It is an amenable number.

5465445581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5465445581 is an equidigital number, since it uses as much as digits as its factorization.

5465445581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920000, while the sum is 47.

The square root of 5465445581 is about 73928.6519625510. The cubic root of 5465445581 is about 1761.4697585250.

The spelling of 5465445581 in words is "five billion, four hundred sixty-five million, four hundred forty-five thousand, five hundred eighty-one".