45049505 has 4 divisors (see below), whose sum is σ = 54059412. Its totient is φ = 36039600.

The previous prime is 45049493. The next prime is 45049519. The reversal of 45049505 is 50594054.

It is a happy number.

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 26790976 + 18258529 = 5176^2 + 4273^2 .

It is not a de Polignac number, because 45049505 - 2¹⁸ = 44787361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4504946 + ... + 4504955.

It is an arithmetic number, because the mean of its divisors is an integer number (13514853).

Almost surely, 2^45049505 is an apocalyptic number.

It is an amenable number.

45049505 is a deficient number, since it is larger than the sum of its proper divisors (9009907).

45049505 is an equidigital number, since it uses as much as digits as its factorization.

45049505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9009906.

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

The square root of 45049505 is about 6711.8928030772. The cubic root of 45049505 is about 355.8197152429.

It can be divided in two parts, 45049 and 505, that added together give a palindrome (45554).

The spelling of 45049505 in words is "forty-five million, forty-nine thousand, five hundred five".