55141643 has 2 divisors, whose sum is σ = 55141644. Its totient is φ = 55141642.

The previous prime is 55141637. The next prime is 55141661. The reversal of 55141643 is 34614155.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55141643 - 2²² = 50947339 is a prime.

It is not a weakly prime, because it can be changed into another prime (55141243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27570821 + 27570822.

It is an arithmetic number, because the mean of its divisors is an integer number (27570822).

Almost surely, 2^55141643 is an apocalyptic number.

55141643 is a deficient number, since it is larger than the sum of its proper divisors (1).

55141643 is an equidigital number, since it uses as much as digits as its factorization.

55141643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 55141643 is about 7425.7419157954. The cubic root of 55141643 is about 380.6214278009.

Adding to 55141643 its reverse (34614155), we get a palindrome (89755798).

The spelling of 55141643 in words is "fifty-five million, one hundred forty-one thousand, six hundred forty-three".