54402222 has 64 divisors (see below), whose sum is σ = 130867200. Its totient is φ = 14740704.

The previous prime is 54402211. The next prime is 54402233. The reversal of 54402222 is 22220445.

It is an interprime number because it is at equal distance from previous prime (54402211) and next prime (54402233).

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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192093 + ... + 192375.

It is an arithmetic number, because the mean of its divisors is an integer number (2044800).

Almost surely, 2^54402222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54402222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65433600).

54402222 is an abundant number, since it is smaller than the sum of its proper divisors (76464978).

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

54402222 is a wasteful number, since it uses less digits than its factorization.

54402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 54402222 is about 7375.7861953828. The cubic root of 54402222 is about 378.9124537012.

Adding to 54402222 its reverse (22220445), we get a palindrome (76622667).

The spelling of 54402222 in words is "fifty-four million, four hundred two thousand, two hundred twenty-two".