55444021532001 has 16 divisors (see below), whose sum is σ = 82139718225600. Its totient is φ = 36962488841184.

The previous prime is 55444021531967. The next prime is 55444021532023. The reversal of 55444021532001 is 10023512044455.

55444021532001 is a `hidden beast` number, since 5 + 5 + 4 + 440 + 2 + 1 + 5 + 3 + 200 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-55444021532001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55444021532041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49710 + ... + 10530456.

It is an arithmetic number, because the mean of its divisors is an integer number (5133732389100).

Almost surely, 2^{55444021532001} is an apocalyptic number.

It is an amenable number.

55444021532001 is a deficient number, since it is larger than the sum of its proper divisors (26695696693599).

55444021532001 is a wasteful number, since it uses less digits than its factorization.

55444021532001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676685 (or 10676679 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 55444021532001 its reverse (10023512044455), we get a palindrome (65467533576456).

The spelling of 55444021532001 in words is "fifty-five trillion, four hundred forty-four billion, twenty-one million, five hundred thirty-two thousand, one".