45545312 has 48 divisors (see below), whose sum is σ = 98249760. Its totient is φ = 20686848.

The previous prime is 45545281. The next prime is 45545321. The reversal of 45545312 is 21354554.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14333 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (2046870).

Almost surely, 2^45545312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45545312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49124880).

45545312 is an abundant number, since it is smaller than the sum of its proper divisors (52704448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45545312 is a wasteful number, since it uses less digits than its factorization.

45545312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943 (or 2935 counting only the distinct ones).

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

The square root of 45545312 is about 6748.7266947180. The cubic root of 45545312 is about 357.1203186996.

Adding to 45545312 its reverse (21354554), we get a palindrome (66899866).

The spelling of 45545312 in words is "forty-five million, five hundred forty-five thousand, three hundred twelve".