55536342103021 has 16 divisors (see below), whose sum is σ = 60655814126208. Its totient is φ = 50538054571200.

The previous prime is 55536342103013. The next prime is 55536342103043. The reversal of 55536342103021 is 12030124363555.

It is a cyclic number.

It is not a de Polignac number, because 55536342103021 - 2³ = 55536342103013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55536342103061) 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, 8547430 + ... + 13569496.

It is an arithmetic number, because the mean of its divisors is an integer number (3790988382888).

Almost surely, 2^{55536342103021} is an apocalyptic number.

It is an amenable number.

55536342103021 is a deficient number, since it is larger than the sum of its proper divisors (5119472023187).

55536342103021 is a wasteful number, since it uses less digits than its factorization.

55536342103021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5034132.

The product of its (nonzero) digits is 324000, while the sum is 40.

Adding to 55536342103021 its reverse (12030124363555), we get a palindrome (67566466466576).

The spelling of 55536342103021 in words is "fifty-five trillion, five hundred thirty-six billion, three hundred forty-two million, one hundred three thousand, twenty-one".