45321556 has 12 divisors (see below), whose sum is σ = 90643168. Its totient is φ = 19423512.

The previous prime is 45321553. The next prime is 45321557. The reversal of 45321556 is 65512354.

45321556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

45321556 is an admirable number.

It is a super-2 number, since 2×45321556² = 4108086876522272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45321553) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 809286 + ... + 809341.

Almost surely, 2^45321556 is an apocalyptic number.

It is an amenable number.

45321556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

45321556 is a wasteful number, since it uses less digits than its factorization.

45321556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618638 (or 1618636 counting only the distinct ones).

The product of its digits is 18000, while the sum is 31.

The square root of 45321556 is about 6732.1286381055. The cubic root of 45321556 is about 356.5345355424.

The spelling of 45321556 in words is "forty-five million, three hundred twenty-one thousand, five hundred fifty-six".