51156553130 has 16 divisors (see below), whose sum is σ = 92124923400. Its totient is φ = 20453037312.

The previous prime is 51156553111. The next prime is 51156553139. The reversal of 51156553130 is 3135565115.

It can be written as a sum of positive squares in 4 ways, for example, as 14801885569 + 36354667561 = 121663^2 + 190669^2 .

It is not an unprimeable number, because it can be changed into a prime (51156553139) 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 7 ways as a sum of consecutive naturals, for example, 1175555 + ... + 1218294.

Almost surely, 2^51156553130 is an apocalyptic number.

51156553130 is a deficient number, since it is larger than the sum of its proper divisors (40968370270).

51156553130 is a wasteful number, since it uses less digits than its factorization.

51156553130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395993.

The product of its (nonzero) digits is 33750, while the sum is 35.

The spelling of 51156553130 in words is "fifty-one billion, one hundred fifty-six million, five hundred fifty-three thousand, one hundred thirty".