56515151550555 has 12 divisors (see below), whose sum is σ = 97959596021040. Its totient is φ = 30141414160272.

The previous prime is 56515151550553. The next prime is 56515151550593. The reversal of 56515151550555 is 55505515151565.

56515151550555 is a `hidden beast` number, since 5 + 6 + 5 + 15 + 15 + 15 + 50 + 555 = 666.

56515151550555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56515151550555 - 2¹ = 56515151550553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56515151550553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 627946128295 + ... + 627946128384.

It is an arithmetic number, because the mean of its divisors is an integer number (8163299668420).

Almost surely, 2^{56515151550555} is an apocalyptic number.

56515151550555 is a deficient number, since it is larger than the sum of its proper divisors (41444444470485).

56515151550555 is a wasteful number, since it uses less digits than its factorization.

56515151550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255892256690 (or 1255892256687 counting only the distinct ones).

The product of its (nonzero) digits is 11718750, while the sum is 54.

The spelling of 56515151550555 in words is "fifty-six trillion, five hundred fifteen billion, one hundred fifty-one million, five hundred fifty thousand, five hundred fifty-five".