51443203155 has 16 divisors (see below), whose sum is σ = 82322810880. Its totient is φ = 27431813088.

The previous prime is 51443203127. The next prime is 51443203169. The reversal of 51443203155 is 55130234415.

It is not a de Polignac number, because 51443203155 - 2⁷ = 51443203027 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190897 + ... + 373266.

It is an arithmetic number, because the mean of its divisors is an integer number (5145175680).

Almost surely, 2^51443203155 is an apocalyptic number.

51443203155 is a deficient number, since it is larger than the sum of its proper divisors (30879607725).

51443203155 is a wasteful number, since it uses less digits than its factorization.

51443203155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570250.

The product of its (nonzero) digits is 36000, while the sum is 33.

The spelling of 51443203155 in words is "fifty-one billion, four hundred forty-three million, two hundred three thousand, one hundred fifty-five".