55415133305323 has 16 divisors (see below), whose sum is σ = 63924988925952. Its totient is φ = 47563235784000.

The previous prime is 55415133305209. The next prime is 55415133305383. The reversal of 55415133305323 is 32350333151455.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55415133305323 - 2³⁷ = 55277694351851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55415133305323.

It is not an unprimeable number, because it can be changed into a prime (55415133305383) 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, 1981787511 + ... + 1981815472.

It is an arithmetic number, because the mean of its divisors is an integer number (3995311807872).

Almost surely, 2^{55415133305323} is an apocalyptic number.

55415133305323 is a deficient number, since it is larger than the sum of its proper divisors (8509855620629).

55415133305323 is a wasteful number, since it uses less digits than its factorization.

55415133305323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3963603066.

The product of its (nonzero) digits is 1215000, while the sum is 43.

Adding to 55415133305323 its reverse (32350333151455), we get a palindrome (87765466456778).

The spelling of 55415133305323 in words is "fifty-five trillion, four hundred fifteen billion, one hundred thirty-three million, three hundred five thousand, three hundred twenty-three".