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56477 is a prime number
BaseRepresentation
bin1101110010011101
32212110202
431302131
53301402
61113245
7323441
oct156235
985422
1056477
1139483
1228825
131c925
1416821
1511b02
hexdc9d

56477 has 2 divisors, whose sum is σ = 56478. Its totient is φ = 56476.

The previous prime is 56473. The next prime is 56479. The reversal of 56477 is 77465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32761 + 23716 = 181^2 + 154^2 .

It is a cyclic number.

It is not a de Polignac number, because 56477 - 22 = 56473 is a prime.

Together with 56479, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 9.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 56477.

It is not a weakly prime, because it can be changed into another prime (56473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28238 + 28239.

It is an arithmetic number, because the mean of its divisors is an integer number (28239).

256477 is an apocalyptic number.

It is an amenable number.

56477 is a deficient number, since it is larger than the sum of its proper divisors (1).

56477 is an equidigital number, since it uses as much as digits as its factorization.

56477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 29.

The square root of 56477 is about 237.6489006918. The cubic root of 56477 is about 38.3669438468.

It can be divided in two parts, 5 and 6477, that multiplied together give a triangular number (32385 = T254).

The spelling of 56477 in words is "fifty-six thousand, four hundred seventy-seven".