51828052155 has 32 divisors (see below), whose sum is σ = 90699816960. Its totient is φ = 25063111680.

The previous prime is 51828052121. The next prime is 51828052163. The reversal of 51828052155 is 55125082815.

It is not a de Polignac number, because 51828052155 - 2¹³ = 51828043963 is a prime.

It is a super-2 number, since 2×51828052155² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 346870 + ... + 473259.

It is an arithmetic number, because the mean of its divisors is an integer number (2834369280).

Almost surely, 2^51828052155 is an apocalyptic number.

51828052155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51828052155 is a deficient number, since it is larger than the sum of its proper divisors (38871764805).

51828052155 is a wasteful number, since it uses less digits than its factorization.

51828052155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820531.

The product of its (nonzero) digits is 160000, while the sum is 42.

The spelling of 51828052155 in words is "fifty-one billion, eight hundred twenty-eight million, fifty-two thousand, one hundred fifty-five".