45055993 has 2 divisors, whose sum is σ = 45055994. Its totient is φ = 45055992.

The previous prime is 45055981. The next prime is 45056029. The reversal of 45055993 is 39955054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34892649 + 10163344 = 5907^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 45055993 - 2⁹ = 45055481 is a prime.

It is not a weakly prime, because it can be changed into another prime (45055903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22527996 + 22527997.

It is an arithmetic number, because the mean of its divisors is an integer number (22527997).

Almost surely, 2^45055993 is an apocalyptic number.

It is an amenable number.

45055993 is a deficient number, since it is larger than the sum of its proper divisors (1).

45055993 is an equidigital number, since it uses as much as digits as its factorization.

45055993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 40.

The square root of 45055993 is about 6712.3761068641. The cubic root of 45055993 is about 355.8367960632.

The spelling of 45055993 in words is "forty-five million, fifty-five thousand, nine hundred ninety-three".