55390201 has 8 divisors (see below), whose sum is σ = 56123424. Its totient is φ = 54660480.

The previous prime is 55390189. The next prime is 55390213. The reversal of 55390201 is 10209355.

It is an interprime number because it is at equal distance from previous prime (55390189) and next prime (55390213).

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 55390201 - 2¹¹ = 55388153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55390241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47046 + ... + 48208.

It is an arithmetic number, because the mean of its divisors is an integer number (7015428).

Almost surely, 2^55390201 is an apocalyptic number.

It is an amenable number.

55390201 is a deficient number, since it is larger than the sum of its proper divisors (733223).

55390201 is a wasteful number, since it uses less digits than its factorization.

55390201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 55390201 is about 7442.4593381489. The cubic root of 55390201 is about 381.1924705454.

Adding to 55390201 its reverse (10209355), we get a palindrome (65599556).

The spelling of 55390201 in words is "fifty-five million, three hundred ninety thousand, two hundred one".