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56504207 = 443127549
BaseRepresentation
bin1101011110001…
…0111110001111
310221022201012102
43113202332033
5103431113312
65335025315
71254164204
oct327427617
9127281172
1056504207
11299934a1
1216b0b23b
13b924a56
14770bcab
154e61ec2
hex35e2f8f

56504207 has 4 divisors (see below), whose sum is σ = 56632200. Its totient is φ = 56376216.

The previous prime is 56504179. The next prime is 56504213. The reversal of 56504207 is 70240565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70240565 = 514048113.

It is a cyclic number.

It is not a de Polignac number, because 56504207 - 216 = 56438671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56504207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56504237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63332 + ... + 64217.

It is an arithmetic number, because the mean of its divisors is an integer number (14158050).

Almost surely, 256504207 is an apocalyptic number.

56504207 is a deficient number, since it is larger than the sum of its proper divisors (127993).

56504207 is a wasteful number, since it uses less digits than its factorization.

56504207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127992.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 56504207 is about 7516.9280294546. The cubic root of 56504207 is about 383.7310376947.

The spelling of 56504207 in words is "fifty-six million, five hundred four thousand, two hundred seven".

Divisors: 1 443 127549 56504207