5503545 has 40 divisors (see below), whose sum is σ = 10036224. Its totient is φ = 2884896.

The previous prime is 5503541. The next prime is 5503549. The reversal of 5503545 is 5453055.

It is an interprime number because it is at equal distance from previous prime (5503541) and next prime (5503549).

It is not a de Polignac number, because 5503545 - 2² = 5503541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

5503545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5503541) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 43272 + ... + 43398.

Almost surely, 2^5503545 is an apocalyptic number.

It is an amenable number.

5503545 is a deficient number, since it is larger than the sum of its proper divisors (4532679).

5503545 is a wasteful number, since it uses less digits than its factorization.

5503545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 5503545 is about 2345.9635547041. The cubic root of 5503545 is about 176.5553331207. Note that the first 3 decimals are identical.

It can be divided in two parts, 550 and 3545, that added together give a triangular number (4095 = T₉₀).

The spelling of 5503545 in words is "five million, five hundred three thousand, five hundred forty-five".