51010611055042 has 4 divisors (see below), whose sum is σ = 76515916582566. Its totient is φ = 25505305527520.

The previous prime is 51010611054979. The next prime is 51010611055099. The reversal of 51010611055042 is 24055011601015.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 35340896722041 + 15669714333001 = 5944821^2 + 3958499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51010611054995 and 51010611055013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752652763759 + ... + 12752652763762.

Almost surely, 2^{51010611055042} is an apocalyptic number.

51010611055042 is a deficient number, since it is larger than the sum of its proper divisors (25505305527524).

51010611055042 is a wasteful number, since it uses less digits than its factorization.

51010611055042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25505305527523.

The product of its (nonzero) digits is 6000, while the sum is 31.

Adding to 51010611055042 its reverse (24055011601015), we get a palindrome (75065622656057).

The spelling of 51010611055042 in words is "fifty-one trillion, ten billion, six hundred eleven million, fifty-five thousand, forty-two".