51554243 has 8 divisors (see below), whose sum is σ = 55692336. Its totient is φ = 47440800.

The previous prime is 51554221. The next prime is 51554273. The reversal of 51554243 is 34245515.

51554243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51554243 - 2¹⁶ = 51488707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51554273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1688 + ... + 10293.

It is an arithmetic number, because the mean of its divisors is an integer number (6961542).

Almost surely, 2^51554243 is an apocalyptic number.

51554243 is a deficient number, since it is larger than the sum of its proper divisors (4138093).

51554243 is a wasteful number, since it uses less digits than its factorization.

51554243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325.

The product of its digits is 12000, while the sum is 29.

The square root of 51554243 is about 7180.1283414713. The cubic root of 51554243 is about 372.1815195941.

Adding to 51554243 its reverse (34245515), we get a palindrome (85799758).

The spelling of 51554243 in words is "fifty-one million, five hundred fifty-four thousand, two hundred forty-three".