51662251114 has 4 divisors (see below), whose sum is σ = 77493376674. Its totient is φ = 25831125556.

The previous prime is 51662251097. The next prime is 51662251153. The reversal of 51662251114 is 41115226615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37789416025 + 13872835089 = 194395^2 + 117783^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 51662251114.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12915562777 + ... + 12915562780.

Almost surely, 2^51662251114 is an apocalyptic number.

51662251114 is a deficient number, since it is larger than the sum of its proper divisors (25831125560).

51662251114 is a wasteful number, since it uses less digits than its factorization.

51662251114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25831125559.

The product of its digits is 14400, while the sum is 34.

Adding to 51662251114 its reverse (41115226615), we get a palindrome (92777477729).

The spelling of 51662251114 in words is "fifty-one billion, six hundred sixty-two million, two hundred fifty-one thousand, one hundred fourteen".