5524821 has 8 divisors (see below), whose sum is σ = 8184960. Its totient is φ = 3683196.

The previous prime is 5524811. The next prime is 5524823. The reversal of 5524821 is 1284255.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-5524821 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 204623 = 5524821 / (5 + 5 + 2 + 4 + 8 + 2 + 1).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5524823) 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, 102285 + ... + 102338.

It is an arithmetic number, because the mean of its divisors is an integer number (1023120).

Almost surely, 2^5524821 is an apocalyptic number.

It is an amenable number.

5524821 is a deficient number, since it is larger than the sum of its proper divisors (2660139).

5524821 is a wasteful number, since it uses less digits than its factorization.

5524821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204632 (or 204626 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 5524821 is about 2350.4937779114. The cubic root of 5524821 is about 176.7825540036.

The spelling of 5524821 in words is "five million, five hundred twenty-four thousand, eight hundred twenty-one".