55606477 has 2 divisors, whose sum is σ = 55606478. Its totient is φ = 55606476.

The previous prime is 55606471. The next prime is 55606517. The reversal of 55606477 is 77460655.

It is a happy number.

It is an a-pointer prime, because the next prime (55606517) can be obtained adding 55606477 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51065316 + 4541161 = 7146^2 + 2131^2 .

It is a cyclic number.

It is not a de Polignac number, because 55606477 - 2³ = 55606469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55606471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27803238 + 27803239.

It is an arithmetic number, because the mean of its divisors is an integer number (27803239).

Almost surely, 2^55606477 is an apocalyptic number.

It is an amenable number.

55606477 is a deficient number, since it is larger than the sum of its proper divisors (1).

55606477 is an equidigital number, since it uses as much as digits as its factorization.

55606477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 55606477 is about 7456.9750569517. The cubic root of 55606477 is about 381.6879595891.

The spelling of 55606477 in words is "fifty-five million, six hundred six thousand, four hundred seventy-seven".