45005546 has 4 divisors (see below), whose sum is σ = 67508322. Its totient is φ = 22502772.

The previous prime is 45005539. The next prime is 45005557. The reversal of 45005546 is 64550054.

45005546 is nontrivially palindromic in base 4 and base 8.

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

It can be written as a sum of positive squares in only one way, i.e., 23280625 + 21724921 = 4825^2 + 4661^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11251385 + ... + 11251388.

Almost surely, 2^45005546 is an apocalyptic number.

45005546 is a deficient number, since it is larger than the sum of its proper divisors (22502776).

45005546 is a wasteful number, since it uses less digits than its factorization.

45005546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22502775.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 45005546 is about 6708.6172941971. The cubic root of 45005546 is about 355.7039420934.

The spelling of 45005546 in words is "forty-five million, five thousand, five hundred forty-six".