55965629 has 2 divisors, whose sum is σ = 55965630. Its totient is φ = 55965628.

The previous prime is 55965617. The next prime is 55965631. The reversal of 55965629 is 92656955.

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., 39400729 + 16564900 = 6277^2 + 4070^2 .

It is a cyclic number.

It is not a de Polignac number, because 55965629 - 2²⁰ = 54917053 is a prime.

Together with 55965631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55965029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27982814 + 27982815.

It is an arithmetic number, because the mean of its divisors is an integer number (27982815).

Almost surely, 2^55965629 is an apocalyptic number.

It is an amenable number.

55965629 is a deficient number, since it is larger than the sum of its proper divisors (1).

55965629 is an equidigital number, since it uses as much as digits as its factorization.

55965629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 729000, while the sum is 47.

The square root of 55965629 is about 7481.0179120224. The cubic root of 55965629 is about 382.5079474903.

The spelling of 55965629 in words is "fifty-five million, nine hundred sixty-five thousand, six hundred twenty-nine".