45503553 has 8 divisors (see below), whose sum is σ = 60751648. Its totient is φ = 30295584.

The previous prime is 45503551. The next prime is 45503593. The reversal of 45503553 is 35530554.

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

It is not a de Polignac number, because 45503553 - 2¹ = 45503551 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45503553.

It is not an unprimeable number, because it can be changed into a prime (45503551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7276 + ... + 11997.

It is an arithmetic number, because the mean of its divisors is an integer number (7593956).

Almost surely, 2^45503553 is an apocalyptic number.

It is an amenable number.

45503553 is a deficient number, since it is larger than the sum of its proper divisors (15248095).

45503553 is a wasteful number, since it uses less digits than its factorization.

45503553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20063.

The product of its (nonzero) digits is 22500, while the sum is 30.

The square root of 45503553 is about 6745.6321423570. The cubic root of 45503553 is about 357.0111413639.

It can be divided in two parts, 45503 and 553, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 45503553 in words is "forty-five million, five hundred three thousand, five hundred fifty-three".