55422201 has 8 divisors (see below), whose sum is σ = 75698784. Its totient is φ = 36046880.

The previous prime is 55422197. The next prime is 55422209. The reversal of 55422201 is 10222455.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55422201 - 2² = 55422197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55422209) 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, 225171 + ... + 225416.

It is an arithmetic number, because the mean of its divisors is an integer number (9462348).

Almost surely, 2^55422201 is an apocalyptic number.

It is an amenable number.

55422201 is a deficient number, since it is larger than the sum of its proper divisors (20276583).

55422201 is a wasteful number, since it uses less digits than its factorization.

55422201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450631.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55422201 is about 7444.6088547351. The cubic root of 55422201 is about 381.2658638566.

Adding to 55422201 its reverse (10222455), we get a palindrome (65644656).

The spelling of 55422201 in words is "fifty-five million, four hundred twenty-two thousand, two hundred one".