51542203533243 has 16 divisors (see below), whose sum is σ = 70140823879680. Its totient is φ = 33659375795136.

The previous prime is 51542203533241. The next prime is 51542203533319. The reversal of 51542203533243 is 34233530224515.

It is not a de Polignac number, because 51542203533243 - 2¹ = 51542203533241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51542203533195 and 51542203533204.

It is not an unprimeable number, because it can be changed into a prime (51542203533241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 856181130 + ... + 856241327.

It is an arithmetic number, because the mean of its divisors is an integer number (4383801492480).

Almost surely, 2^{51542203533243} is an apocalyptic number.

51542203533243 is a deficient number, since it is larger than the sum of its proper divisors (18598620346437).

51542203533243 is a wasteful number, since it uses less digits than its factorization.

51542203533243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1712422666.

The product of its (nonzero) digits is 1296000, while the sum is 42.

Adding to 51542203533243 its reverse (34233530224515), we get a palindrome (85775733757758).

The spelling of 51542203533243 in words is "fifty-one trillion, five hundred forty-two billion, two hundred three million, five hundred thirty-three thousand, two hundred forty-three".