45523447 has 4 divisors (see below), whose sum is σ = 45560320. Its totient is φ = 45486576.

The previous prime is 45523441. The next prime is 45523451. The reversal of 45523447 is 74432554.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45523447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45523441) 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, 16518 + ... + 19075.

It is an arithmetic number, because the mean of its divisors is an integer number (11390080).

Almost surely, 2^45523447 is an apocalyptic number.

45523447 is a deficient number, since it is larger than the sum of its proper divisors (36873).

45523447 is a wasteful number, since it uses less digits than its factorization.

45523447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36872.

The product of its digits is 67200, while the sum is 34.

The square root of 45523447 is about 6747.1065650396. The cubic root of 45523447 is about 357.0631618061.

The spelling of 45523447 in words is "forty-five million, five hundred twenty-three thousand, four hundred forty-seven".