51404532111 has 12 divisors (see below), whose sum is σ = 77479295088. Its totient is φ = 32779701504.

The previous prime is 51404532097. The next prime is 51404532133. The reversal of 51404532111 is 11123540415.

51404532111 is a `hidden beast` number, since 5 + 14 + 0 + 4 + 532 + 111 = 666.

It is not a de Polignac number, because 51404532111 - 2⁵ = 51404532079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51404532181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124165330 + ... + 124165743.

It is an arithmetic number, because the mean of its divisors is an integer number (6456607924).

Almost surely, 2^51404532111 is an apocalyptic number.

51404532111 is a deficient number, since it is larger than the sum of its proper divisors (26074762977).

51404532111 is a wasteful number, since it uses less digits than its factorization.

51404532111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248331102 (or 248331099 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 51404532111 in words is "fifty-one billion, four hundred four million, five hundred thirty-two thousand, one hundred eleven".