45547423 has 4 divisors (see below), whose sum is σ = 46189008. Its totient is φ = 44905840.

The previous prime is 45547409. The next prime is 45547451. The reversal of 45547423 is 32474554.

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 45547423 - 2⁵ = 45547391 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 (45547483) 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, 320686 + ... + 320827.

It is an arithmetic number, because the mean of its divisors is an integer number (11547252).

Almost surely, 2^45547423 is an apocalyptic number.

45547423 is a deficient number, since it is larger than the sum of its proper divisors (641585).

45547423 is an equidigital number, since it uses as much as digits as its factorization.

45547423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641584.

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

The square root of 45547423 is about 6748.8830927791. The cubic root of 45547423 is about 357.1258360574.

The spelling of 45547423 in words is "forty-five million, five hundred forty-seven thousand, four hundred twenty-three".