56115556500 has 96 divisors (see below), whose sum is σ = 165477312000. Its totient is φ = 14774697600.

The previous prime is 56115556499. The next prime is 56115556501. The reversal of 56115556500 is 565551165.

It is an interprime number because it is at equal distance from previous prime (56115556499) and next prime (56115556501).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56115556501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118275 + ... + 355274.

It is an arithmetic number, because the mean of its divisors is an integer number (1723722000).

Almost surely, 2^56115556500 is an apocalyptic number.

56115556500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56115556500 is an abundant number, since it is smaller than the sum of its proper divisors (109361755500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56115556500 is a wasteful number, since it uses less digits than its factorization.

56115556500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473650 (or 473638 counting only the distinct ones).

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

The spelling of 56115556500 in words is "fifty-six billion, one hundred fifteen million, five hundred fifty-six thousand, five hundred".