45515320 has 16 divisors (see below), whose sum is σ = 102409560. Its totient is φ = 18206112.

The previous prime is 45515293. The next prime is 45515357. The reversal of 45515320 is 2351554.

It is a congruent number.

It is an unprimeable number.

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, 568902 + ... + 568981.

Almost surely, 2^45515320 is an apocalyptic number.

45515320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45515320 is an abundant number, since it is smaller than the sum of its proper divisors (56894240).

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

45515320 is a wasteful number, since it uses less digits than its factorization.

45515320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137894 (or 1137890 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 45515320 is about 6746.5042799957. The cubic root of 45515320 is about 357.0419124998.

Adding to 45515320 its reverse (2351554), we get a palindrome (47866874).

The spelling of 45515320 in words is "forty-five million, five hundred fifteen thousand, three hundred twenty".