65554222 has 4 divisors (see below), whose sum is σ = 98331336. Its totient is φ = 32777110.

The previous prime is 65554211. The next prime is 65554241. The reversal of 65554222 is 22245556.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16388554 + ... + 16388557.

It is an arithmetic number, because the mean of its divisors is an integer number (24582834).

Almost surely, 2^65554222 is an apocalyptic number.

65554222 is a deficient number, since it is larger than the sum of its proper divisors (32777114).

65554222 is a wasteful number, since it uses less digits than its factorization.

65554222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32777113.

The product of its digits is 24000, while the sum is 31.

The square root of 65554222 is about 8096.5561814885. The cubic root of 65554222 is about 403.2120994981.

Adding to 65554222 its reverse (22245556), we get a palindrome (87799778).

The spelling of 65554222 in words is "sixty-five million, five hundred fifty-four thousand, two hundred twenty-two".