45564961 has 4 divisors (see below), whose sum is σ = 49069972. Its totient is φ = 42059952.

The previous prime is 45564941. The next prime is 45564971. The reversal of 45564961 is 16946554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16946554 = 2 ⋅8473277.

It can be written as a sum of positive squares in 2 ways, for example, as 30041361 + 15523600 = 5481^2 + 3940^2 .

It is a cyclic number.

It is not a de Polignac number, because 45564961 - 2⁵ = 45564929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45564901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752486 + ... + 1752511.

It is an arithmetic number, because the mean of its divisors is an integer number (12267493).

Almost surely, 2^45564961 is an apocalyptic number.

It is an amenable number.

45564961 is a deficient number, since it is larger than the sum of its proper divisors (3505011).

45564961 is a wasteful number, since it uses less digits than its factorization.

45564961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505010.

The product of its digits is 129600, while the sum is 40.

The square root of 45564961 is about 6750.1822938347. The cubic root of 45564961 is about 357.1716671845.

The spelling of 45564961 in words is "forty-five million, five hundred sixty-four thousand, nine hundred sixty-one".