45550320 has 80 divisors (see below), whose sum is σ = 143910432. Its totient is φ = 11914240.

The previous prime is 45550313. The next prime is 45550339. The reversal of 45550320 is 2305554.

45550320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10930 + ... + 14510.

Almost surely, 2^45550320 is an apocalyptic number.

45550320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45550320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71955216).

45550320 is an abundant number, since it is smaller than the sum of its proper divisors (98360112).

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

45550320 is a wasteful number, since it uses less digits than its factorization.

45550320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650 (or 3644 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 45550320 is about 6749.0977174731. The cubic root of 45550320 is about 357.1334074452.

Adding to 45550320 its reverse (2305554), we get a palindrome (47855874).

The spelling of 45550320 in words is "forty-five million, five hundred fifty thousand, three hundred twenty".