55243001 has 8 divisors (see below), whose sum is σ = 61547904. Its totient is φ = 49151920.

The previous prime is 55242991. The next prime is 55243007. The reversal of 55243001 is 10034255.

55243001 = 2236² + 2237² + ... + 2246².

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 55243001 - 2¹⁸ = 54980857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55243007) 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, 52910 + ... + 53943.

It is an arithmetic number, because the mean of its divisors is an integer number (7693488).

Almost surely, 2^55243001 is an apocalyptic number.

It is an amenable number.

55243001 is a deficient number, since it is larger than the sum of its proper divisors (6304903).

55243001 is a wasteful number, since it uses less digits than its factorization.

55243001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106911.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 55243001 is about 7432.5635550596. The cubic root of 55243001 is about 380.8544967413.

Adding to 55243001 its reverse (10034255), we get a palindrome (65277256).

The spelling of 55243001 in words is "fifty-five million, two hundred forty-three thousand, one".