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56071200000 = 2835561383
BaseRepresentation
bin110100001110000110…
…101001110100000000
312100201200212002100010
4310032012221310000
51404313211400000
641431520224520
74023332223204
oct641606516400
9170650762303
1056071200000
1121863804512
12aa4a16b140
13539780756a
1429dcb94b04
1516d2893d50
hexd0e1a9d00

56071200000 has 432 divisors, whose sum is σ = 190079834112. Its totient is φ = 14668800000.

The previous prime is 56071199941. The next prime is 56071200007. The reversal of 56071200000 is 217065.

56071200000 = T61 + T62 + ... + T6954.

It is a self number, because there is not a number n which added to its sum of digits gives 56071200000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56071200007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146399809 + ... + 146400191.

It is an arithmetic number, because the mean of its divisors is an integer number (439999616).

Almost surely, 256071200000 is an apocalyptic number.

56071200000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56071200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95039917056).

56071200000 is an abundant number, since it is smaller than the sum of its proper divisors (134008634112).

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

56071200000 is an frugal number, since it uses more digits than its factorization.

56071200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

Adding to 56071200000 its reverse (217065), we get a palindrome (56071417065).

The spelling of 56071200000 in words is "fifty-six billion, seventy-one million, two hundred thousand".