43552045 has 16 divisors (see below), whose sum is σ = 56690928. Its totient is φ = 31989760.

The previous prime is 43552043. The next prime is 43552057. The reversal of 43552045 is 54025534.

It can be written as a sum of positive squares in 8 ways, for example, as 1522756 + 42029289 = 1234^2 + 6483^2 .

It is not a de Polignac number, because 43552045 - 2¹ = 43552043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43552043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764 + ... + 9733.

It is an arithmetic number, because the mean of its divisors is an integer number (3543183).

Almost surely, 2^43552045 is an apocalyptic number.

It is an amenable number.

43552045 is a deficient number, since it is larger than the sum of its proper divisors (13138883).

43552045 is a wasteful number, since it uses less digits than its factorization.

43552045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12560.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 43552045 is about 6599.3973209680. The cubic root of 43552045 is about 351.8326861740.

Adding to 43552045 its reverse (54025534), we get a palindrome (97577579).

It can be divided in two parts, 4355 and 2045, that added together give a square (6400 = 80²).

The spelling of 43552045 in words is "forty-three million, five hundred fifty-two thousand, forty-five".