5513623 has 2 divisors, whose sum is σ = 5513624. Its totient is φ = 5513622.

The previous prime is 5513611. The next prime is 5513663. The reversal of 5513623 is 3263155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5513623 is a prime.

It is a super-2 number, since 2×5513623² = 60800077172258, which contains 22 as substring.

5513623 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5513663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2756811 + 2756812.

It is an arithmetic number, because the mean of its divisors is an integer number (2756812).

Almost surely, 2^5513623 is an apocalyptic number.

5513623 is a deficient number, since it is larger than the sum of its proper divisors (1).

5513623 is an equidigital number, since it uses as much as digits as its factorization.

5513623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 25.

The square root of 5513623 is about 2348.1105169902. The cubic root of 5513623 is about 176.6630358021.

Adding to 5513623 its reverse (3263155), we get a palindrome (8776778).

The spelling of 5513623 in words is "five million, five hundred thirteen thousand, six hundred twenty-three".