5523121 has 4 divisors (see below), whose sum is σ = 5534244. Its totient is φ = 5512000.

The previous prime is 5523109. The next prime is 5523131. The reversal of 5523121 is 1213255.

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 3240000 + 2283121 = 1800^2 + 1511^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5523121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5523131) 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, 4780 + ... + 5821.

It is an arithmetic number, because the mean of its divisors is an integer number (1383561).

Almost surely, 2^5523121 is an apocalyptic number.

It is an amenable number.

5523121 is a deficient number, since it is larger than the sum of its proper divisors (11123).

5523121 is a wasteful number, since it uses less digits than its factorization.

5523121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122.

The product of its digits is 300, while the sum is 19.

The square root of 5523121 is about 2350.1321239454. The cubic root of 5523121 is about 176.7644200121.

Adding to 5523121 its reverse (1213255), we get a palindrome (6736376).

The spelling of 5523121 in words is "five million, five hundred twenty-three thousand, one hundred twenty-one".