45721055 has 8 divisors (see below), whose sum is σ = 54903744. Its totient is φ = 36551200.

The previous prime is 45721051. The next prime is 45721057. The reversal of 45721055 is 55012754.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45721055 - 2² = 45721051 is a prime.

It is a Duffinian number.

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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8570 + ... + 12840.

It is an arithmetic number, because the mean of its divisors is an integer number (6862968).

Almost surely, 2^45721055 is an apocalyptic number.

45721055 is a deficient number, since it is larger than the sum of its proper divisors (9182689).

45721055 is a wasteful number, since it uses less digits than its factorization.

45721055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6417.

The product of its (nonzero) digits is 7000, while the sum is 29.

The square root of 45721055 is about 6761.7346147272. The cubic root of 45721055 is about 357.5790621755.

It can be divided in two parts, 457 and 21055, that added together give a palindrome (21512).

The spelling of 45721055 in words is "forty-five million, seven hundred twenty-one thousand, fifty-five".