45669523 has 4 divisors (see below), whose sum is σ = 45924840. Its totient is φ = 45414208.

The previous prime is 45669511. The next prime is 45669527. The reversal of 45669523 is 32596654.

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 45669523 - 2²⁵ = 12115091 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45669527) 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, 127390 + ... + 127747.

It is an arithmetic number, because the mean of its divisors is an integer number (11481210).

Almost surely, 2^45669523 is an apocalyptic number.

45669523 is a deficient number, since it is larger than the sum of its proper divisors (255317).

45669523 is a wasteful number, since it uses less digits than its factorization.

45669523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255316.

The product of its digits is 194400, while the sum is 40.

The square root of 45669523 is about 6757.9229797328. The cubic root of 45669523 is about 357.4446697424. Note that the first 3 decimals are identical.

The spelling of 45669523 in words is "forty-five million, six hundred sixty-nine thousand, five hundred twenty-three".