55562222 has 8 divisors (see below), whose sum is σ = 88245936. Its totient is φ = 26146912.

The previous prime is 55562189. The next prime is 55562233. The reversal of 55562222 is 22226555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817058 + ... + 817125.

It is an arithmetic number, because the mean of its divisors is an integer number (11030742).

Almost surely, 2^55562222 is an apocalyptic number.

55562222 is a deficient number, since it is larger than the sum of its proper divisors (32683714).

55562222 is a wasteful number, since it uses less digits than its factorization.

55562222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634202.

The product of its digits is 12000, while the sum is 29.

The square root of 55562222 is about 7454.0071102730. The cubic root of 55562222 is about 381.5866759218.

Adding to 55562222 its reverse (22226555), we get a palindrome (77788777).

The spelling of 55562222 in words is "fifty-five million, five hundred sixty-two thousand, two hundred twenty-two".