51148440033 has 4 divisors (see below), whose sum is σ = 68197920048. Its totient is φ = 34098960020.

The previous prime is 51148439989. The next prime is 51148440047. The reversal of 51148440033 is 33004484115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51148440033 - 2¹⁷ = 51148308961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51148439976 and 51148440003.

It is not an unprimeable number, because it can be changed into a prime (51148447033) 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 3 ways as a sum of consecutive naturals, for example, 8524740003 + ... + 8524740008.

It is an arithmetic number, because the mean of its divisors is an integer number (17049480012).

Almost surely, 2^51148440033 is an apocalyptic number.

It is an amenable number.

51148440033 is a deficient number, since it is larger than the sum of its proper divisors (17049480015).

51148440033 is a wasteful number, since it uses less digits than its factorization.

51148440033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17049480014.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 51148440033 in words is "fifty-one billion, one hundred forty-eight million, four hundred forty thousand, thirty-three".