45515228 has 24 divisors (see below), whose sum is σ = 87129840. Its totient is φ = 20632320.

The previous prime is 45515219. The next prime is 45515233. The reversal of 45515228 is 82251554.

45515228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 45515194 and 45515203.

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 7 ways as a sum of consecutive naturals, for example, 17858 + ... + 20246.

It is an arithmetic number, because the mean of its divisors is an integer number (3630410).

Almost surely, 2^45515228 is an apocalyptic number.

It is an amenable number.

45515228 is a deficient number, since it is larger than the sum of its proper divisors (41614612).

45515228 is a wasteful number, since it uses less digits than its factorization.

45515228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837 (or 2835 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 45515228 is about 6746.4974616463. The cubic root of 45515228 is about 357.0416719370.

It can be divided in two parts, 4551 and 5228, that added together give a palindrome (9779).

The spelling of 45515228 in words is "forty-five million, five hundred fifteen thousand, two hundred twenty-eight".