56377547 has 2 divisors, whose sum is σ = 56377548. Its totient is φ = 56377546.

The previous prime is 56377523. The next prime is 56377549. The reversal of 56377547 is 74577365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56377547 - 2¹² = 56373451 is a prime.

Together with 56377549, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56377498 and 56377507.

It is not a weakly prime, because it can be changed into another prime (56377549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28188773 + 28188774.

It is an arithmetic number, because the mean of its divisors is an integer number (28188774).

Almost surely, 2^56377547 is an apocalyptic number.

56377547 is a deficient number, since it is larger than the sum of its proper divisors (1).

56377547 is an equidigital number, since it uses as much as digits as its factorization.

56377547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 617400, while the sum is 44.

The square root of 56377547 is about 7508.4983185721. The cubic root of 56377547 is about 383.4440989716. Note that the first 3 decimals are identical.

The spelling of 56377547 in words is "fifty-six million, three hundred seventy-seven thousand, five hundred forty-seven".