56405342250 has 192 divisors, whose sum is σ = 160859986560. Its totient is φ = 14785545600.

The previous prime is 56405342243. The next prime is 56405342251. The reversal of 56405342250 is 5224350465.

56405342250 is a `hidden beast` number, since 5 + 64 + 0 + 5 + 342 + 250 = 666.

It is not an unprimeable number, because it can be changed into a prime (56405342251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3576382 + ... + 3592118.

It is an arithmetic number, because the mean of its divisors is an integer number (837812430).

Almost surely, 2^56405342250 is an apocalyptic number.

56405342250 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 56405342250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80429993280).

56405342250 is an abundant number, since it is smaller than the sum of its proper divisors (104454644310).

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

56405342250 is a wasteful number, since it uses less digits than its factorization.

56405342250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828 (or 15806 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

The spelling of 56405342250 in words is "fifty-six billion, four hundred five million, three hundred forty-two thousand, two hundred fifty".