55445141 has 2 divisors, whose sum is σ = 55445142. Its totient is φ = 55445140.

The previous prime is 55445119. The next prime is 55445167. The reversal of 55445141 is 14154455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50822641 + 4622500 = 7129^2 + 2150^2 .

It is a cyclic number.

It is not a de Polignac number, because 55445141 - 2¹⁸ = 55182997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55445171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27722570 + 27722571.

It is an arithmetic number, because the mean of its divisors is an integer number (27722571).

Almost surely, 2^55445141 is an apocalyptic number.

It is an amenable number.

55445141 is a deficient number, since it is larger than the sum of its proper divisors (1).

55445141 is an equidigital number, since it uses as much as digits as its factorization.

55445141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 29.

The square root of 55445141 is about 7446.1494075797. The cubic root of 55445141 is about 381.3184603030.

Adding to 55445141 its reverse (14154455), we get a palindrome (69599596).

The spelling of 55445141 in words is "fifty-five million, four hundred forty-five thousand, one hundred forty-one".