55675649 has 2 divisors, whose sum is σ = 55675650. Its totient is φ = 55675648.

The previous prime is 55675637. The next prime is 55675651. The reversal of 55675649 is 94657655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 2458624 = 7295^2 + 1568^2 .

It is a cyclic number.

It is not a de Polignac number, because 55675649 - 2²⁰ = 54627073 is a prime.

Together with 55675651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (55675619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27837824 + 27837825.

It is an arithmetic number, because the mean of its divisors is an integer number (27837825).

Almost surely, 2^55675649 is an apocalyptic number.

It is an amenable number.

55675649 is a deficient number, since it is larger than the sum of its proper divisors (1).

55675649 is an equidigital number, since it uses as much as digits as its factorization.

55675649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 47.

The square root of 55675649 is about 7461.6116891728. The cubic root of 55675649 is about 381.8461616598.

The spelling of 55675649 in words is "fifty-five million, six hundred seventy-five thousand, six hundred forty-nine".