51133441155 has 64 divisors (see below), whose sum is σ = 86938790400. Its totient is φ = 25591265280.

The previous prime is 51133441153. The next prime is 51133441169. The reversal of 51133441155 is 55114433115.

It is a happy number.

It is not a de Polignac number, because 51133441155 - 2¹ = 51133441153 is a prime.

It is a super-2 number, since 2×51133441155² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51133441153) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 13529056 + ... + 13532834.

It is an arithmetic number, because the mean of its divisors is an integer number (1358418600).

Almost surely, 2^51133441155 is an apocalyptic number.

51133441155 is a deficient number, since it is larger than the sum of its proper divisors (35805349245).

51133441155 is a wasteful number, since it uses less digits than its factorization.

51133441155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4244.

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

The spelling of 51133441155 in words is "fifty-one billion, one hundred thirty-three million, four hundred forty-one thousand, one hundred fifty-five".