51320011354 has 16 divisors (see below), whose sum is σ = 79670555496. Its totient is φ = 24776064000.

The previous prime is 51320011339. The next prime is 51320011357. The reversal of 51320011354 is 45311002315.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 32086482129 + 19233529225 = 179127^2 + 138685^2 .

It is not an unprimeable number, because it can be changed into a prime (51320011357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3218097 + ... + 3234004.

Almost surely, 2^51320011354 is an apocalyptic number.

51320011354 is a deficient number, since it is larger than the sum of its proper divisors (28350544142).

51320011354 is a wasteful number, since it uses less digits than its factorization.

51320011354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452241.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 51320011354 its reverse (45311002315), we get a palindrome (96631013669).

The spelling of 51320011354 in words is "fifty-one billion, three hundred twenty million, eleven thousand, three hundred fifty-four".