51135025224542 has 16 divisors (see below), whose sum is σ = 89449023717600. Its totient is φ = 21915010810224.

The previous prime is 51135025224499. The next prime is 51135025224557. The reversal of 51135025224542 is 24542252053115.

51135025224542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51135025224542² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51135025224542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37270425863 + ... + 37270427234.

It is an arithmetic number, because the mean of its divisors is an integer number (5590563982350).

Almost surely, 2^{51135025224542} is an apocalyptic number.

51135025224542 is a deficient number, since it is larger than the sum of its proper divisors (38313998493058).

51135025224542 is an equidigital number, since it uses as much as digits as its factorization.

51135025224542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74540853120 (or 74540853106 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 51135025224542 its reverse (24542252053115), we get a palindrome (75677277277657).

The spelling of 51135025224542 in words is "fifty-one trillion, one hundred thirty-five billion, twenty-five million, two hundred twenty-four thousand, five hundred forty-two".