51011011015 has 32 divisors (see below), whose sum is σ = 62460034560. Its totient is φ = 39988080000.

The previous prime is 51011010979. The next prime is 51011011021.

51011011015 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51011011015 - 2⁷ = 51011010887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51011011015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23409196 + ... + 23411374.

It is an arithmetic number, because the mean of its divisors is an integer number (1951876080).

Almost surely, 2^51011011015 is an apocalyptic number.

51011011015 is a deficient number, since it is larger than the sum of its proper divisors (11449023545).

51011011015 is a wasteful number, since it uses less digits than its factorization.

51011011015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743.

The product of its (nonzero) digits is 25, while the sum is 16.

It can be divided in two parts, 510110 and 11015, that added together give a palindrome (521125).

The spelling of 51011011015 in words is "fifty-one billion, eleven million, eleven thousand, fifteen".