45405543 has 4 divisors (see below), whose sum is σ = 60540728. Its totient is φ = 30270360.

The previous prime is 45405541. The next prime is 45405551. The reversal of 45405543 is 34550454.

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

It is not a de Polignac number, because 45405543 - 2¹ = 45405541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45405543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45405541) 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, 7567588 + ... + 7567593.

It is an arithmetic number, because the mean of its divisors is an integer number (15135182).

Almost surely, 2^45405543 is an apocalyptic number.

45405543 is a deficient number, since it is larger than the sum of its proper divisors (15135185).

45405543 is a wasteful number, since it uses less digits than its factorization.

45405543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15135184.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 45405543 is about 6738.3635253673. The cubic root of 45405543 is about 356.7546352828.

Adding to 45405543 its reverse (34550454), we get a palindrome (79955997).

The spelling of 45405543 in words is "forty-five million, four hundred five thousand, five hundred forty-three".