51055566015 has 8 divisors (see below), whose sum is σ = 81688905648. Its totient is φ = 27229635200.

The previous prime is 51055565999. The next prime is 51055566017. The reversal of 51055566015 is 51066555015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51055566015 - 2⁴ = 51055565999 is a prime.

It is a super-2 number, since 2×51055566015² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51055566017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701852186 + ... + 1701852215.

It is an arithmetic number, because the mean of its divisors is an integer number (10211113206).

Almost surely, 2^51055566015 is an apocalyptic number.

51055566015 is a deficient number, since it is larger than the sum of its proper divisors (30633339633).

51055566015 is a wasteful number, since it uses less digits than its factorization.

51055566015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3403704409.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 51055566015 in words is "fifty-one billion, fifty-five million, five hundred sixty-six thousand, fifteen".