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56514869 is a prime number
BaseRepresentation
bin1101011110010…
…1100100110101
310221100020211022
43113211210311
5103431433434
65335150525
71254240245
oct327454465
9127306738
1056514869
11299a0504
1216b15445
13b929868
147711b25
154e6522e
hex35e5935

56514869 has 2 divisors, whose sum is σ = 56514870. Its totient is φ = 56514868.

The previous prime is 56514859. The next prime is 56514877. The reversal of 56514869 is 96841565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54982225 + 1532644 = 7415^2 + 1238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56514869 is a prime.

It is a super-2 number, since 2×565148692 = 6387860836174322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56514859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28257434 + 28257435.

It is an arithmetic number, because the mean of its divisors is an integer number (28257435).

Almost surely, 256514869 is an apocalyptic number.

It is an amenable number.

56514869 is a deficient number, since it is larger than the sum of its proper divisors (1).

56514869 is an equidigital number, since it uses as much as digits as its factorization.

56514869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 44.

The square root of 56514869 is about 7517.6371952895. The cubic root of 56514869 is about 383.7551720807.

The spelling of 56514869 in words is "fifty-six million, five hundred fourteen thousand, eight hundred sixty-nine".