51111226253 has 16 divisors (see below), whose sum is σ = 52637485824. Its totient is φ = 49604950080.

The previous prime is 51111226247. The next prime is 51111226261. The reversal of 51111226253 is 35262211115.

It is a cyclic number.

It is not a de Polignac number, because 51111226253 - 2¹⁰ = 51111225229 is a prime.

It is a super-2 number, since 2×51111226253² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51111226853) 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, 2833523 + ... + 2851503.

It is an arithmetic number, because the mean of its divisors is an integer number (3289842864).

Almost surely, 2^51111226253 is an apocalyptic number.

It is an amenable number.

51111226253 is a deficient number, since it is larger than the sum of its proper divisors (1526259571).

51111226253 is a wasteful number, since it uses less digits than its factorization.

51111226253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18532.

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

Adding to 51111226253 its reverse (35262211115), we get a palindrome (86373437368).

The spelling of 51111226253 in words is "fifty-one billion, one hundred eleven million, two hundred twenty-six thousand, two hundred fifty-three".