55667629 has 2 divisors, whose sum is σ = 55667630. Its totient is φ = 55667628.

The previous prime is 55667593. The next prime is 55667653. The reversal of 55667629 is 92676655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38775529 + 16892100 = 6227^2 + 4110^2 .

It is a cyclic number.

It is not a de Polignac number, because 55667629 - 2¹¹ = 55665581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55667699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27833814 + 27833815.

It is an arithmetic number, because the mean of its divisors is an integer number (27833815).

Almost surely, 2^55667629 is an apocalyptic number.

It is an amenable number.

55667629 is a deficient number, since it is larger than the sum of its proper divisors (1).

55667629 is an equidigital number, since it uses as much as digits as its factorization.

55667629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 680400, while the sum is 46.

The square root of 55667629 is about 7461.0742524116. The cubic root of 55667629 is about 381.8278259761.

The spelling of 55667629 in words is "fifty-five million, six hundred sixty-seven thousand, six hundred twenty-nine".