51520116026 has 32 divisors (see below), whose sum is σ = 83073760320. Its totient is φ = 23890204800.

The previous prime is 51520116013. The next prime is 51520116029. The reversal of 51520116026 is 62061102515.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 51520116026.

It is not an unprimeable number, because it can be changed into a prime (51520116029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436430 + ... + 541766.

It is an arithmetic number, because the mean of its divisors is an integer number (2596055010).

Almost surely, 2^51520116026 is an apocalyptic number.

51520116026 is a deficient number, since it is larger than the sum of its proper divisors (31553644294).

51520116026 is a wasteful number, since it uses less digits than its factorization.

51520116026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105630.

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 51520116026 in words is "fifty-one billion, five hundred twenty million, one hundred sixteen thousand, twenty-six".