51055003111 has 6 divisors (see below), whose sum is σ = 59390513880. Its totient is φ = 43761431196.

The previous prime is 51055003093. The next prime is 51055003117. The reversal of 51055003111 is 11130055015.

It is not a de Polignac number, because 51055003111 - 2¹³ = 51054994919 is a prime.

It is a super-2 number, since 2×51055003111² (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 (51055003117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 520969371 + ... + 520969468.

It is an arithmetic number, because the mean of its divisors is an integer number (9898418980).

Almost surely, 2^51055003111 is an apocalyptic number.

51055003111 is a deficient number, since it is larger than the sum of its proper divisors (8335510769).

51055003111 is a wasteful number, since it uses less digits than its factorization.

51055003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041938853 (or 1041938846 counting only the distinct ones).

The product of its (nonzero) digits is 375, while the sum is 22.

Adding to 51055003111 its reverse (11130055015), we get a palindrome (62185058126).

The spelling of 51055003111 in words is "fifty-one billion, fifty-five million, three thousand, one hundred eleven".