55522229 has 8 divisors (see below), whose sum is σ = 63582720. Its totient is φ = 47493936.

The previous prime is 55522223. The next prime is 55522249. The reversal of 55522229 is 92222555.

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

It is not a de Polignac number, because 55522229 - 2²⁴ = 38745013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55522195 and 55522204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55522223) 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, 4229 + ... + 11354.

It is an arithmetic number, because the mean of its divisors is an integer number (7947840).

Almost surely, 2^55522229 is an apocalyptic number.

It is an amenable number.

55522229 is a deficient number, since it is larger than the sum of its proper divisors (8060491).

55522229 is a wasteful number, since it uses less digits than its factorization.

55522229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16099.

The product of its digits is 18000, while the sum is 32.

The square root of 55522229 is about 7451.3239763145. The cubic root of 55522229 is about 381.4951001571.

The spelling of 55522229 in words is "fifty-five million, five hundred twenty-two thousand, two hundred twenty-nine".