55519141 has 2 divisors, whose sum is σ = 55519142. Its totient is φ = 55519140.

The previous prime is 55519133. The next prime is 55519151. The reversal of 55519141 is 14191555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55502500 + 16641 = 7450^2 + 129^2 .

It is a cyclic number.

It is not a de Polignac number, because 55519141 - 2³ = 55519133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55519111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27759570 + 27759571.

It is an arithmetic number, because the mean of its divisors is an integer number (27759571).

Almost surely, 2^55519141 is an apocalyptic number.

55519141 is the 4713-rd centered pentagonal number.

It is an amenable number.

55519141 is a deficient number, since it is larger than the sum of its proper divisors (1).

55519141 is an equidigital number, since it uses as much as digits as its factorization.

55519141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 31.

The square root of 55519141 is about 7451.1167619358. The cubic root of 55519141 is about 381.4880274421.

The spelling of 55519141 in words is "fifty-five million, five hundred nineteen thousand, one hundred forty-one".