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56675520 = 26325111789
BaseRepresentation
bin1101100000110…
…0110011000000
310221122102012100
43120030303000
5104002104040
65342430400
71255506516
oct330146300
9127572170
1056675520
1129aa0180
1216b92400
13b984a15
1477544b6
154e97b30
hex360ccc0

56675520 has 168 divisors, whose sum is σ = 212780880. Its totient is φ = 13731840.

The previous prime is 56675513. The next prime is 56675551. The reversal of 56675520 is 2557665.

56675520 is a `hidden beast` number, since 5 + 66 + 75 + 520 = 666.

It is a super-2 number, since 2×566755202 = 6424229134540800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30786 + ... + 32574.

Almost surely, 256675520 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 56675520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106390440).

56675520 is an abundant number, since it is smaller than the sum of its proper divisors (156105360).

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

56675520 is a wasteful number, since it uses less digits than its factorization.

56675520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1810 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 56675520 is about 7528.3145524081. The cubic root of 56675520 is about 384.1184530402.

It can be divided in two parts, 56 and 675520, that added together give a palindrome (675576).

The spelling of 56675520 in words is "fifty-six million, six hundred seventy-five thousand, five hundred twenty".