55145323100423 has 8 divisors (see below), whose sum is σ = 58397837844528. Its totient is φ = 51893771935104.

The previous prime is 55145323100381. The next prime is 55145323100443. The reversal of 55145323100423 is 32400132354155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55145323100423 - 2⁶ = 55145323100359 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 (55145323100443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240776861 + ... + 241005782.

It is an arithmetic number, because the mean of its divisors is an integer number (7299729730566).

Almost surely, 2^{55145323100423} is an apocalyptic number.

55145323100423 is a deficient number, since it is larger than the sum of its proper divisors (3252514744105).

55145323100423 is a wasteful number, since it uses less digits than its factorization.

55145323100423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481789393.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 55145323100423 its reverse (32400132354155), we get a palindrome (87545455454578).

The spelling of 55145323100423 in words is "fifty-five trillion, one hundred forty-five billion, three hundred twenty-three million, one hundred thousand, four hundred twenty-three".