55677617 has 2 divisors, whose sum is σ = 55677618. Its totient is φ = 55677616.

The previous prime is 55677571. The next prime is 55677673. The reversal of 55677617 is 71677655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55368481 + 309136 = 7441^2 + 556^2 .

It is a cyclic number.

It is not a de Polignac number, because 55677617 - 2¹⁸ = 55415473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55677697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27838808 + 27838809.

It is an arithmetic number, because the mean of its divisors is an integer number (27838809).

Almost surely, 2^55677617 is an apocalyptic number.

It is an amenable number.

55677617 is a deficient number, since it is larger than the sum of its proper divisors (1).

55677617 is an equidigital number, since it uses as much as digits as its factorization.

55677617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308700, while the sum is 44.

The square root of 55677617 is about 7461.7435630019. The cubic root of 55677617 is about 381.8506607206.

The spelling of 55677617 in words is "fifty-five million, six hundred seventy-seven thousand, six hundred seventeen".