51046155231 has 32 divisors (see below), whose sum is σ = 73023767040. Its totient is φ = 31624556544.

The previous prime is 51046155211. The next prime is 51046155283. The reversal of 51046155231 is 13255164015.

It is not a de Polignac number, because 51046155231 - 2⁷ = 51046155103 is a prime.

It is a super-2 number, since 2×51046155231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51046155192 and 51046155201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51046155211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 583926 + ... + 665628.

It is an arithmetic number, because the mean of its divisors is an integer number (2281992720).

Almost surely, 2^51046155231 is an apocalyptic number.

51046155231 is a deficient number, since it is larger than the sum of its proper divisors (21977611809).

51046155231 is a wasteful number, since it uses less digits than its factorization.

51046155231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81935.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 51046155231 in words is "fifty-one billion, forty-six million, one hundred fifty-five thousand, two hundred thirty-one".