56111521050 has 576 divisors, whose sum is σ = 182508318720. Its totient is φ = 12223664640.

The previous prime is 56111521049. The next prime is 56111521051. The reversal of 56111521050 is 5012511165.

56111521050 is a `hidden beast` number, since 561 + 1 + 1 + 52 + 1 + 0 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (56111521049) and next prime (56111521051).

It is not an unprimeable number, because it can be changed into a prime (56111521051) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 120152917 + ... + 120153383.

It is an arithmetic number, because the mean of its divisors is an integer number (316854720).

Almost surely, 2^56111521050 is an apocalyptic number.

56111521050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 56111521050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91254159360).

56111521050 is an abundant number, since it is smaller than the sum of its proper divisors (126396797670).

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

56111521050 is a wasteful number, since it uses less digits than its factorization.

56111521050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 27.

The spelling of 56111521050 in words is "fifty-six billion, one hundred eleven million, five hundred twenty-one thousand, fifty".