5521723 has 4 divisors (see below), whose sum is σ = 5812360. Its totient is φ = 5231088.

The previous prime is 5521721. The next prime is 5521729. The reversal of 5521723 is 3271255.

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

It is a cyclic number.

It is not a de Polignac number, because 5521723 - 2¹ = 5521721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5521721) 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, 145290 + ... + 145327.

It is an arithmetic number, because the mean of its divisors is an integer number (1453090).

Almost surely, 2^5521723 is an apocalyptic number.

5521723 is a deficient number, since it is larger than the sum of its proper divisors (290637).

5521723 is a wasteful number, since it uses less digits than its factorization.

5521723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290636.

The product of its digits is 2100, while the sum is 25.

The square root of 5521723 is about 2349.8346750357. The cubic root of 5521723 is about 176.7495046824.

Adding to 5521723 its reverse (3271255), we get a palindrome (8792978).

The spelling of 5521723 in words is "five million, five hundred twenty-one thousand, seven hundred twenty-three".