55443622 has 16 divisors (see below), whose sum is σ = 90699840. Its totient is φ = 25264512.

The previous prime is 55443607. The next prime is 55443623. The reversal of 55443622 is 22634455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55443623) 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, 11443 + ... + 15550.

It is an arithmetic number, because the mean of its divisors is an integer number (5668740).

Almost surely, 2^55443622 is an apocalyptic number.

55443622 is a deficient number, since it is larger than the sum of its proper divisors (35256218).

55443622 is a wasteful number, since it uses less digits than its factorization.

55443622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27087.

The product of its digits is 28800, while the sum is 31.

The square root of 55443622 is about 7446.0474078534. The cubic root of 55443622 is about 381.3149780139.

It can be divided in two parts, 55443 and 622, that added together give a palindrome (56065).

The spelling of 55443622 in words is "fifty-five million, four hundred forty-three thousand, six hundred twenty-two".