55233161451321 has 16 divisors (see below), whose sum is σ = 86439542246784. Its totient is φ = 30708784744704.

The previous prime is 55233161451233. The next prime is 55233161451331. The reversal of 55233161451321 is 12315416133255.

It is not a de Polignac number, because 55233161451321 - 2¹⁸ = 55233161189177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55233161451331) 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, 35542574160 + ... + 35542575713.

It is an arithmetic number, because the mean of its divisors is an integer number (5402471390424).

Almost surely, 2^{55233161451321} is an apocalyptic number.

It is an amenable number.

55233161451321 is a deficient number, since it is larger than the sum of its proper divisors (31206380795463).

55233161451321 is a wasteful number, since it uses less digits than its factorization.

55233161451321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71085149920.

The product of its digits is 324000, while the sum is 42.

Adding to 55233161451321 its reverse (12315416133255), we get a palindrome (67548577584576).

The spelling of 55233161451321 in words is "fifty-five trillion, two hundred thirty-three billion, one hundred sixty-one million, four hundred fifty-one thousand, three hundred twenty-one".