45020285 has 4 divisors (see below), whose sum is σ = 54024348. Its totient is φ = 36016224.

The previous prime is 45020249. The next prime is 45020317. The reversal of 45020285 is 58202054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15578809 + 29441476 = 3947^2 + 5426^2 .

It is a cyclic number.

It is not a de Polignac number, because 45020285 - 2¹⁴ = 45003901 is a prime.

It is a super-2 number, since 2×45020285² = 4053652122962450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4502024 + ... + 4502033.

It is an arithmetic number, because the mean of its divisors is an integer number (13506087).

Almost surely, 2^45020285 is an apocalyptic number.

It is an amenable number.

45020285 is a deficient number, since it is larger than the sum of its proper divisors (9004063).

45020285 is an equidigital number, since it uses as much as digits as its factorization.

45020285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9004062.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 45020285 is about 6709.7157167797. The cubic root of 45020285 is about 355.7427680356.

The spelling of 45020285 in words is "forty-five million, twenty thousand, two hundred eighty-five".