51023244542 has 8 divisors (see below), whose sum is σ = 81036917856. Its totient is φ = 24010938592.

The previous prime is 51023244529. The next prime is 51023244553. The reversal of 51023244542 is 24544232015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51023244499 and 51023244508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750341798 + ... + 750341865.

It is an arithmetic number, because the mean of its divisors is an integer number (10129614732).

Almost surely, 2^51023244542 is an apocalyptic number.

51023244542 is a deficient number, since it is larger than the sum of its proper divisors (30013673314).

51023244542 is a wasteful number, since it uses less digits than its factorization.

51023244542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500683682.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 51023244542 its reverse (24544232015), we get a palindrome (75567476557).

The spelling of 51023244542 in words is "fifty-one billion, twenty-three million, two hundred forty-four thousand, five hundred forty-two".