45721056 has 48 divisors (see below), whose sum is σ = 125241984. Its totient is φ = 14577024.

The previous prime is 45721051. The next prime is 45721057. The reversal of 45721056 is 65012754.

45721056 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 (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45721051) 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 7 ways as a sum of consecutive naturals, for example, 8146 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (2609208).

Almost surely, 2^45721056 is an apocalyptic number.

45721056 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

45721056 is an abundant number, since it is smaller than the sum of its proper divisors (79520928).

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

45721056 is a wasteful number, since it uses less digits than its factorization.

45721056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20743 (or 20735 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 45721056 is about 6761.7346886727. The cubic root of 45721056 is about 357.5790647824.

The spelling of 45721056 in words is "forty-five million, seven hundred twenty-one thousand, fifty-six".