45506443 has 4 divisors (see below), whose sum is σ = 47485008. Its totient is φ = 43527880.

The previous prime is 45506441. The next prime is 45506509. The reversal of 45506443 is 34460554.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34460554 = 2 ⋅17230277.

It is a cyclic number.

It is not a de Polignac number, because 45506443 - 2¹ = 45506441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45506441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 989248 + ... + 989293.

It is an arithmetic number, because the mean of its divisors is an integer number (11871252).

Almost surely, 2^45506443 is an apocalyptic number.

45506443 is a deficient number, since it is larger than the sum of its proper divisors (1978565).

45506443 is a wasteful number, since it uses less digits than its factorization.

45506443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978564.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 45506443 is about 6745.8463516448. The cubic root of 45506443 is about 357.0186993111.

Adding to 45506443 its reverse (34460554), we get a palindrome (79966997).

The spelling of 45506443 in words is "forty-five million, five hundred six thousand, four hundred forty-three".