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56755237 = 7112373439
BaseRepresentation
bin1101100010000…
…0010000100101
310221210110112211
43120200100211
5104012131422
65344243421
71256261110
oct330402045
9127713484
1056755237
112a045060
1217010571
13b9b20a6
147775577
154eb1577
hex3620425

56755237 has 32 divisors (see below), whose sum is σ = 75018240. Its totient is φ = 41627520.

The previous prime is 56755217. The next prime is 56755247. The reversal of 56755237 is 73255765.

It is not a de Polignac number, because 56755237 - 215 = 56722469 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 56755237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56755217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129064 + ... + 129502.

It is an arithmetic number, because the mean of its divisors is an integer number (2344320).

Almost surely, 256755237 is an apocalyptic number.

It is an amenable number.

56755237 is a deficient number, since it is larger than the sum of its proper divisors (18263003).

56755237 is a wasteful number, since it uses less digits than its factorization.

56755237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its digits is 220500, while the sum is 40.

The square root of 56755237 is about 7533.6071705392. The cubic root of 56755237 is about 384.2984627126.

The spelling of 56755237 in words is "fifty-six million, seven hundred fifty-five thousand, two hundred thirty-seven".

Divisors: 1 7 11 23 73 77 161 253 439 511 803 1679 1771 3073 4829 5621 10097 11753 18469 32047 33803 70679 111067 129283 224329 352517 737081 777469 2467619 5159567 8107891 56755237