55154542212423 has 6 divisors (see below), whose sum is σ = 79667672084624. Its totient is φ = 36769694808276.

The previous prime is 55154542212379. The next prime is 55154542212437. The reversal of 55154542212423 is 32421224545155.

55154542212423 is a `hidden beast` number, since 5 + 5 + 1 + 5 + 4 + 5 + 4 + 2 + 212 + 423 = 666.

It is not a de Polignac number, because 55154542212423 - 2⁸ = 55154542212167 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 (55154542212923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3064141234015 + ... + 3064141234032.

Almost surely, 2^{55154542212423} is an apocalyptic number.

55154542212423 is a deficient number, since it is larger than the sum of its proper divisors (24513129872201).

55154542212423 is a wasteful number, since it uses less digits than its factorization.

55154542212423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6128282468053 (or 6128282468050 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 45.

Adding to 55154542212423 its reverse (32421224545155), we get a palindrome (87575766757578).

The spelling of 55154542212423 in words is "fifty-five trillion, one hundred fifty-four billion, five hundred forty-two million, two hundred twelve thousand, four hundred twenty-three".