55426222 has 16 divisors (see below), whose sum is σ = 90411120. Its totient is φ = 25377408.

The previous prime is 55426213. The next prime is 55426223. The reversal of 55426222 is 22262455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55426223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20772 + ... + 23287.

It is an arithmetic number, because the mean of its divisors is an integer number (5650695).

Almost surely, 2^55426222 is an apocalyptic number.

55426222 is a deficient number, since it is larger than the sum of its proper divisors (34984898).

55426222 is a wasteful number, since it uses less digits than its factorization.

55426222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44115.

The product of its digits is 9600, while the sum is 28.

The square root of 55426222 is about 7444.8789110368. The cubic root of 55426222 is about 381.2750841867.

Adding to 55426222 its reverse (22262455), we get a palindrome (77688677).

The spelling of 55426222 in words is "fifty-five million, four hundred twenty-six thousand, two hundred twenty-two".