45505023 has 4 divisors (see below), whose sum is σ = 60673368. Its totient is φ = 30336680.

The previous prime is 45505013. The next prime is 45505069. The reversal of 45505023 is 32050554.

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

It is a cyclic number.

It is not a de Polignac number, because 45505023 - 2⁴ = 45505007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45504984 and 45505002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45505003) 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, 7584168 + ... + 7584173.

It is an arithmetic number, because the mean of its divisors is an integer number (15168342).

Almost surely, 2^45505023 is an apocalyptic number.

45505023 is a deficient number, since it is larger than the sum of its proper divisors (15168345).

45505023 is a wasteful number, since it uses less digits than its factorization.

45505023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15168344.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 45505023 is about 6745.7411008725. The cubic root of 45505023 is about 357.0149857576.

Adding to 45505023 its reverse (32050554), we get a palindrome (77555577).

The spelling of 45505023 in words is "forty-five million, five hundred five thousand, twenty-three".