45085455 has 24 divisors (see below), whose sum is σ = 79814592. Its totient is φ = 23532864.

The previous prime is 45085433. The next prime is 45085483. The reversal of 45085455 is 55458054.

It is not a de Polignac number, because 45085455 - 2²⁰ = 44036879 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8544 + ... + 12773.

It is an arithmetic number, because the mean of its divisors is an integer number (3325608).

Almost surely, 2^45085455 is an apocalyptic number.

45085455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45085455 is a deficient number, since it is larger than the sum of its proper divisors (34729137).

45085455 is a wasteful number, since it uses less digits than its factorization.

45085455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21375 (or 21372 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 45085455 is about 6714.5703511096. The cubic root of 45085455 is about 355.9143394245.

It can be divided in two parts, 450 and 85455, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 45085455 in words is "forty-five million, eighty-five thousand, four hundred fifty-five".