45500549 has 2 divisors, whose sum is σ = 45500550. Its totient is φ = 45500548.

The previous prime is 45500537. The next prime is 45500597. The reversal of 45500549 is 94500554.

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., 37761025 + 7739524 = 6145^2 + 2782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45500549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45500519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22750274 + 22750275.

It is an arithmetic number, because the mean of its divisors is an integer number (22750275).

Almost surely, 2^45500549 is an apocalyptic number.

It is an amenable number.

45500549 is a deficient number, since it is larger than the sum of its proper divisors (1).

45500549 is an equidigital number, since it uses as much as digits as its factorization.

45500549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 45500549 is about 6745.4094760808. The cubic root of 45500549 is about 357.0032849439.

The spelling of 45500549 in words is "forty-five million, five hundred thousand, five hundred forty-nine".