5517745 has 4 divisors (see below), whose sum is σ = 6621300. Its totient is φ = 4414192.

The previous prime is 5517727. The next prime is 5517749. The reversal of 5517745 is 5477155.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 3869089 = 1284^2 + 1967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5517745 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5517745.

It is not an unprimeable number, because it can be changed into a prime (5517749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551770 + ... + 551779.

It is an arithmetic number, because the mean of its divisors is an integer number (1655325).

Almost surely, 2^5517745 is an apocalyptic number.

It is an amenable number.

5517745 is a deficient number, since it is larger than the sum of its proper divisors (1103555).

5517745 is a wasteful number, since it uses less digits than its factorization.

5517745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103554.

The product of its digits is 24500, while the sum is 34.

The square root of 5517745 is about 2348.9880800038. The cubic root of 5517745 is about 176.7070494292.

The spelling of 5517745 in words is "five million, five hundred seventeen thousand, seven hundred forty-five".