51113035442 has 64 divisors (see below), whose sum is σ = 89942261760. Its totient is φ = 21334332096.

The previous prime is 51113035429. The next prime is 51113035487. The reversal of 51113035442 is 24453031115.

51113035442 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 2×51113035442² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46339463 + ... + 46340565.

It is an arithmetic number, because the mean of its divisors is an integer number (1405347840).

Almost surely, 2^51113035442 is an apocalyptic number.

51113035442 is a deficient number, since it is larger than the sum of its proper divisors (38829226318).

51113035442 is a wasteful number, since it uses less digits than its factorization.

51113035442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 51113035442 its reverse (24453031115), we get a palindrome (75566066557).

The spelling of 51113035442 in words is "fifty-one billion, one hundred thirteen million, thirty-five thousand, four hundred forty-two".