45005523 has 4 divisors (see below), whose sum is σ = 60007368. Its totient is φ = 30003680.

The previous prime is 45005491. The next prime is 45005531. The reversal of 45005523 is 32550054.

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 45005523 - 2⁵ = 45005491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45005493 and 45005502.

It is not an unprimeable number, because it can be changed into a prime (45005123) 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, 7500918 + ... + 7500923.

It is an arithmetic number, because the mean of its divisors is an integer number (15001842).

Almost surely, 2^45005523 is an apocalyptic number.

45005523 is a deficient number, since it is larger than the sum of its proper divisors (15001845).

45005523 is a wasteful number, since it uses less digits than its factorization.

45005523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001844.

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

The square root of 45005523 is about 6708.6155799837. The cubic root of 45005523 is about 355.7038814994.

Adding to 45005523 its reverse (32550054), we get a palindrome (77555577).

The spelling of 45005523 in words is "forty-five million, five thousand, five hundred twenty-three".