51355354155 has 64 divisors (see below), whose sum is σ = 98120816640. Its totient is φ = 22425993216.

The previous prime is 51355354151. The next prime is 51355354229. The reversal of 51355354155 is 55145355315.

It is not a de Polignac number, because 51355354155 - 2² = 51355354151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51355354151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1843309 + ... + 1870961.

It is an arithmetic number, because the mean of its divisors is an integer number (1533137760).

Almost surely, 2^51355354155 is an apocalyptic number.

51355354155 is a deficient number, since it is larger than the sum of its proper divisors (46765462485).

51355354155 is a wasteful number, since it uses less digits than its factorization.

51355354155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28460.

The product of its digits is 562500, while the sum is 42.

The spelling of 51355354155 in words is "fifty-one billion, three hundred fifty-five million, three hundred fifty-four thousand, one hundred fifty-five".