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56125840680 = 233357213174799
BaseRepresentation
bin110100010001010111…
…000101110100101000
312100212111200010021000
4310101113011310220
51404421203400210
641441151315000
74024564526400
oct642127056450
9170774603230
1056125840680
11218916348a8
12aa6451ba60
1353a5c29020
142a06139800
1516d7588ac0
hexd115c5d28

56125840680 has 768 divisors, whose sum is σ = 248209920000. Its totient is φ = 11143028736.

The previous prime is 56125840649. The next prime is 56125840703. The reversal of 56125840680 is 8604852165.

56125840680 is a `hidden beast` number, since 5 + 6 + 1 + 2 + 584 + 0 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 11692921 + ... + 11697719.

It is an arithmetic number, because the mean of its divisors is an integer number (323190000).

Almost surely, 256125840680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56125840680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124104960000).

56125840680 is an abundant number, since it is smaller than the sum of its proper divisors (192084079320).

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

56125840680 is a wasteful number, since it uses less digits than its factorization.

56125840680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863 (or 4846 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 56125840680 in words is "fifty-six billion, one hundred twenty-five million, eight hundred forty thousand, six hundred eighty".