51042542320534 has 24 divisors (see below), whose sum is σ = 80046496186272. Its totient is φ = 24408878765040.

The previous prime is 51042542320487. The next prime is 51042542320541. The reversal of 51042542320534 is 43502324524015.

It is a super-2 number, since 2×51042542320534² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6597987 + ... + 12067249.

It is an arithmetic number, because the mean of its divisors is an integer number (3335270674428).

Almost surely, 2^{51042542320534} is an apocalyptic number.

51042542320534 is a deficient number, since it is larger than the sum of its proper divisors (29003953865738).

51042542320534 is a wasteful number, since it uses less digits than its factorization.

51042542320534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478132 (or 5478109 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 51042542320534 its reverse (43502324524015), we get a palindrome (94544866844549).

The spelling of 51042542320534 in words is "fifty-one trillion, forty-two billion, five hundred forty-two million, three hundred twenty thousand, five hundred thirty-four".