45511445 has 18 divisors (see below), whose sum is σ = 63678006. Its totient is φ = 31135440.

The previous prime is 45511439. The next prime is 45511447. The reversal of 45511445 is 54411554.

It can be written as a sum of positive squares in only one way, i.e., 36409156 + 9102289 = 6034^2 + 3017^2 .

It is a de Polignac number, because none of the positive numbers 2^k-45511445 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45511447) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 105380 + ... + 105810.

It is an arithmetic number, because the mean of its divisors is an integer number (3537667).

Almost surely, 2^45511445 is an apocalyptic number.

It is an amenable number.

45511445 is a deficient number, since it is larger than the sum of its proper divisors (18166561).

45511445 is an frugal number, since it uses more digits than its factorization.

45511445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 443 counting only the distinct ones).

The product of its digits is 8000, while the sum is 29.

The square root of 45511445 is about 6746.2170881169. The cubic root of 45511445 is about 357.0317798186.

Multiplying 45511445 by its product of digits (8000), we get a square (364091560000 = 603400²).

Adding to 45511445 its reverse (54411554), we get a palindrome (99922999).

The spelling of 45511445 in words is "forty-five million, five hundred eleven thousand, four hundred forty-five".