51055011234 has 64 divisors (see below), whose sum is σ = 115064167680. Its totient is φ = 16778396160.

The previous prime is 51055011229. The next prime is 51055011251. The reversal of 51055011234 is 43211055015.

51055011234 is a `hidden beast` number, since 510 + 5 + 5 + 0 + 112 + 34 = 666.

It is a super-2 number, since 2×51055011234² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 51055011198 and 51055011207.

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, 1359064 + ... + 1396124.

It is an arithmetic number, because the mean of its divisors is an integer number (1797877620).

Almost surely, 2^51055011234 is an apocalyptic number.

51055011234 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51055011234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57532083840).

51055011234 is an abundant number, since it is smaller than the sum of its proper divisors (64009156446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51055011234 is a wasteful number, since it uses less digits than its factorization.

51055011234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37432 (or 37426 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

Adding to 51055011234 its reverse (43211055015), we get a palindrome (94266066249).

The spelling of 51055011234 in words is "fifty-one billion, fifty-five million, eleven thousand, two hundred thirty-four".