45049805 has 4 divisors (see below), whose sum is σ = 54059772. Its totient is φ = 36039840.

The previous prime is 45049799. The next prime is 45049811. The reversal of 45049805 is 50894054.

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

It is an interprime number because it is at equal distance from previous prime (45049799) and next prime (45049811).

It can be written as a sum of positive squares in 2 ways, for example, as 7912969 + 37136836 = 2813^2 + 6094^2 .

It is not a de Polignac number, because 45049805 - 2⁸ = 45049549 is a prime.

It is a Duffinian 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, 4504976 + ... + 4504985.

It is an arithmetic number, because the mean of its divisors is an integer number (13514943).

Almost surely, 2^45049805 is an apocalyptic number.

It is an amenable number.

45049805 is a deficient number, since it is larger than the sum of its proper divisors (9009967).

45049805 is an equidigital number, since it uses as much as digits as its factorization.

45049805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9009966.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 45049805 is about 6711.9151514303. The cubic root of 45049805 is about 355.8205050828.

It can be divided in two parts, 45049 and 805, that added together give a palindrome (45854).

The spelling of 45049805 in words is "forty-five million, forty-nine thousand, eight hundred five".