56164262550 has 192 divisors, whose sum is σ = 162400391424. Its totient is φ = 12694220800.

The previous prime is 56164262549. The next prime is 56164262569. The reversal of 56164262550 is 5526246165.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2991994 + ... + 3010706.

It is an arithmetic number, because the mean of its divisors is an integer number (845835372).

Almost surely, 2^56164262550 is an apocalyptic number.

56164262550 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 56164262550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81200195712).

56164262550 is an abundant number, since it is smaller than the sum of its proper divisors (106236128874).

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

56164262550 is a wasteful number, since it uses less digits than its factorization.

56164262550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18863 (or 18858 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 42.

The spelling of 56164262550 in words is "fifty-six billion, one hundred sixty-four million, two hundred sixty-two thousand, five hundred fifty".