51205314420044 has 24 divisors (see below), whose sum is σ = 89731941020736. Its totient is φ = 25567625538000.

The previous prime is 51205314420023. The next prime is 51205314420053. The reversal of 51205314420044 is 44002441350215.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51205314419986 and 51205314420013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22976339 + ... + 25106229.

It is an arithmetic number, because the mean of its divisors is an integer number (3738830875864).

Almost surely, 2^{51205314420044} is an apocalyptic number.

It is an amenable number.

51205314420044 is a deficient number, since it is larger than the sum of its proper divisors (38526626600692).

51205314420044 is a wasteful number, since it uses less digits than its factorization.

51205314420044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138117 (or 2138115 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 51205314420044 its reverse (44002441350215), we get a palindrome (95207755770259).

The spelling of 51205314420044 in words is "fifty-one trillion, two hundred five billion, three hundred fourteen million, four hundred twenty thousand, forty-four".