45505019 has 8 divisors (see below), whose sum is σ = 54743040. Its totient is φ = 36951336.

The previous prime is 45505013. The next prime is 45505069. The reversal of 45505019 is 91050554.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45505019 - 2⁴ = 45505003 is a prime.

It is a super-2 number, since 2×45505019² = 4141413508380722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45504982 and 45505000.

It is not an unprimeable number, because it can be changed into a prime (45505013) 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 in 7 ways as a sum of consecutive naturals, for example, 170939 + ... + 171204.

It is an arithmetic number, because the mean of its divisors is an integer number (6842880).

Almost surely, 2^45505019 is an apocalyptic number.

45505019 is a deficient number, since it is larger than the sum of its proper divisors (9238021).

45505019 is a wasteful number, since it uses less digits than its factorization.

45505019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342169.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 45505019 is about 6745.7408043891. The cubic root of 45505019 is about 357.0149752968.

The spelling of 45505019 in words is "forty-five million, five hundred five thousand, nineteen".