55419641 has 2 divisors, whose sum is σ = 55419642. Its totient is φ = 55419640.

The previous prime is 55419631. The next prime is 55419671. The reversal of 55419641 is 14691455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42250000 + 13169641 = 6500^2 + 3629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55419641 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (55419601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27709820 + 27709821.

It is an arithmetic number, because the mean of its divisors is an integer number (27709821).

Almost surely, 2^55419641 is an apocalyptic number.

It is an amenable number.

55419641 is a deficient number, since it is larger than the sum of its proper divisors (1).

55419641 is an equidigital number, since it uses as much as digits as its factorization.

55419641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 35.

The square root of 55419641 is about 7444.4369162483. The cubic root of 55419641 is about 381.2599934315.

The spelling of 55419641 in words is "fifty-five million, four hundred nineteen thousand, six hundred forty-one".