5511545 has 8 divisors (see below), whose sum is σ = 7122696. Its totient is φ = 4070016.

The previous prime is 5511529. The next prime is 5511547. The reversal of 5511545 is 5451155.

It can be written as a sum of positive squares in 4 ways, for example, as 724201 + 4787344 = 851^2 + 2188^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5511545 - 2⁴ = 5511529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5511547) 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, 42332 + ... + 42461.

It is an arithmetic number, because the mean of its divisors is an integer number (890337).

Almost surely, 2^5511545 is an apocalyptic number.

It is an amenable number.

5511545 is a deficient number, since it is larger than the sum of its proper divisors (1611151).

5511545 is a wasteful number, since it uses less digits than its factorization.

5511545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84811.

The product of its digits is 2500, while the sum is 26.

The square root of 5511545 is about 2347.6679918592. The cubic root of 5511545 is about 176.6408391499.

The spelling of 5511545 in words is "five million, five hundred eleven thousand, five hundred forty-five".