5451222 has 32 divisors (see below), whose sum is σ = 12586752. Its totient is φ = 1541664.

The previous prime is 5451151. The next prime is 5451241. The reversal of 5451222 is 2221545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3888 + ... + 5100.

It is an arithmetic number, because the mean of its divisors is an integer number (393336).

Almost surely, 2^5451222 is an apocalyptic number.

5451222 is an abundant number, since it is smaller than the sum of its proper divisors (7135530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5451222 is a wasteful number, since it uses less digits than its factorization.

5451222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its digits is 800, while the sum is 21.

The square root of 5451222 is about 2334.7852149609. The cubic root of 5451222 is about 175.9940381934.

Adding to 5451222 its reverse (2221545), we get a palindrome (7672767).

The spelling of 5451222 in words is "five million, four hundred fifty-one thousand, two hundred twenty-two".