45072055 has 16 divisors (see below), whose sum is σ = 62049600. Its totient is φ = 30788352.

The previous prime is 45072043. The next prime is 45072103. The reversal of 45072055 is 55027054.

It is not a de Polignac number, because 45072055 - 2⁵ = 45072023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7371 + ... + 12019.

It is an arithmetic number, because the mean of its divisors is an integer number (3878100).

Almost surely, 2^45072055 is an apocalyptic number.

45072055 is a deficient number, since it is larger than the sum of its proper divisors (16977545).

45072055 is a wasteful number, since it uses less digits than its factorization.

45072055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 45072055 is about 6713.5724469168. The cubic root of 45072055 is about 355.8790750973.

It can be divided in two parts, 450720 and 55, that added together give a triangular number (450775 = T₉₄₉).

The spelling of 45072055 in words is "forty-five million, seventy-two thousand, fifty-five".