51005311331030 has 32 divisors (see below), whose sum is σ = 104947381422144. Its totient is φ = 17483840390016.

The previous prime is 51005311331017. The next prime is 51005311331047. The reversal of 51005311331030 is 3013311350015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76643897 + ... + 77306516.

It is an arithmetic number, because the mean of its divisors is an integer number (3279605669442).

Almost surely, 2^{51005311331030} is an apocalyptic number.

51005311331030 is an abundant number, since it is smaller than the sum of its proper divisors (53942070091114).

51005311331030 is a wasteful number, since it uses less digits than its factorization.

51005311331030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153955160.

The product of its (nonzero) digits is 2025, while the sum is 26.

Adding to 51005311331030 its reverse (3013311350015), we get a palindrome (54018622681045).

The spelling of 51005311331030 in words is "fifty-one trillion, five billion, three hundred eleven million, three hundred thirty-one thousand, thirty".