55213233355541 has 4 divisors (see below), whose sum is σ = 56497262038272. Its totient is φ = 53929204672812.

The previous prime is 55213233355517. The next prime is 55213233355547. The reversal of 55213233355541 is 14555333231255.

55213233355541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55213233355541 - 2¹⁸ = 55213233093397 is a prime.

It is a super-2 number, since 2×55213233355541² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55213233355547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642014341301 + ... + 642014341386.

It is an arithmetic number, because the mean of its divisors is an integer number (14124315509568).

Almost surely, 2^{55213233355541} is an apocalyptic number.

It is an amenable number.

55213233355541 is a deficient number, since it is larger than the sum of its proper divisors (1284028682731).

55213233355541 is a wasteful number, since it uses less digits than its factorization.

55213233355541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284028682730.

The product of its digits is 4050000, while the sum is 47.

Adding to 55213233355541 its reverse (14555333231255), we get a palindrome (69768566586796).

The spelling of 55213233355541 in words is "fifty-five trillion, two hundred thirteen billion, two hundred thirty-three million, three hundred fifty-five thousand, five hundred forty-one".