55444213035513 has 12 divisors (see below), whose sum is σ = 80092622761008. Its totient is φ = 36959791491000.

The previous prime is 55444213035503. The next prime is 55444213035539. The reversal of 55444213035513 is 31553031244455.

55444213035513 is a `hidden beast` number, since 5 + 5 + 4 + 44 + 21 + 30 + 3 + 551 + 3 = 666.

It is not a de Polignac number, because 55444213035513 - 2⁵ = 55444213035481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55444213035503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 251316895 + ... + 251537412.

It is an arithmetic number, because the mean of its divisors is an integer number (6674385230084).

Almost surely, 2^{55444213035513} is an apocalyptic number.

It is an amenable number.

55444213035513 is a deficient number, since it is larger than the sum of its proper divisors (24648409725495).

55444213035513 is a wasteful number, since it uses less digits than its factorization.

55444213035513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502866564 (or 502866561 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 45.

Adding to 55444213035513 its reverse (31553031244455), we get a palindrome (86997244279968).

The spelling of 55444213035513 in words is "fifty-five trillion, four hundred forty-four billion, two hundred thirteen million, thirty-five thousand, five hundred thirteen".