55140205441 has 8 divisors (see below), whose sum is σ = 55204839144. Its totient is φ = 55075612800.

The previous prime is 55140205429. The next prime is 55140205487. The reversal of 55140205441 is 14450204155.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 17223937600 + 37916267841 = 131240^2 + 194721^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55140205441 - 2¹³ = 55140197249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55140205411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3254091 + ... + 3270991.

It is an arithmetic number, because the mean of its divisors is an integer number (6900604893).

Almost surely, 2^55140205441 is an apocalyptic number.

It is an amenable number.

55140205441 is a deficient number, since it is larger than the sum of its proper divisors (64633703).

55140205441 is a wasteful number, since it uses less digits than its factorization.

55140205441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20531.

The product of its (nonzero) digits is 16000, while the sum is 31.

Adding to 55140205441 its reverse (14450204155), we get a palindrome (69590409596).

The spelling of 55140205441 in words is "fifty-five billion, one hundred forty million, two hundred five thousand, four hundred forty-one".